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PEG NHS ester linkers crosslink and label proteins and peptides quickly. They react with primary amine groups and use a PEG spacer to boost solubility. This makes them perfect for antibody-drug conjugations in aqueous environments.

NHS ester PEG

Cat# Name Structure M.W. Purity Pricing
(2-pyridyldithio)-PEG-NHS ester
AP10769(2-pyridyldithio)-PEG4-NHS ester
Quick view(2-pyridyldithio)-PEG4-NHS ester
488.58≥95% Pricing
Acid-PEG-NHS ester
AP10913Acid-PEG2-NHS ester
Quick viewAcid-PEG2-NHS ester
303.27≥95% Pricing
AP11823Acid-PEG3-NHS ester
Quick viewAcid-PEG3-NHS ester
347.32≥95% Pricing
AP13397Acid-PEG4-NHS ester
Quick viewAcid-PEG4-NHS ester
391.4≥97% Pricing
AP11824Acid-PEG5-NHS ester
Quick viewAcid-PEG5-NHS ester
435.43≥95% Pricing
AP11825Acid-PEG9-NHS ester
Quick viewAcid-PEG9-NHS ester
611.64≥95% Pricing
AP11826Acid-PEG13-NHS ester
Quick viewAcid-PEG13-NHS ester
787.85≥95% Pricing
AP11827Acid-PEG25-NHS ester
Quick viewAcid-PEG25-NHS ester
1316.49≥95% Pricing
ald-benzoylamide-PEG-CH2 NHS ester
AP10068Ald-benzoylamide-PEG2-CH2 NHS ester
Quick viewAld-benzoylamide-PEG2-CH2 NHS ester
392.36≥95% Pricing
AP10066Ald-benzoylamide-PEG3-CH2 NHS ester
Quick viewAld-benzoylamide-PEG3-CH2 NHS ester
436.41≥95% Pricing
AP10064Ald-benzoylamide-PEG4-CH2 NHS ester
Quick viewAld-benzoylamide-PEG4-CH2 NHS ester
480.47≥95% Pricing
Ald-PEG-NHS ester
AP12243Ald-Ph-PEG2-NHS
Quick viewAld-Ph-PEG2-NHS
406.39≥95% Pricing
AP12244Ald-Ph-PEG4-NHS ester
Quick viewAld-Ph-PEG4-NHS ester
494.5≥95% Pricing
AP12245Ald-Ph-PEG24-NHS ester
Quick viewAld-Ph-PEG24-NHS ester
1375.56≥95% Pricing
Azido-PEG-aminoacetic acid-NHS ester
AP11534Azido-PEG3-aminoacetic acid-NHS ester
Quick viewAzido-PEG3-aminoacetic acid-NHS ester
373.36≥95% Pricing
Azido-PEG-CH2CO2-NHS
AP11528Azido-PEG1-CH2CO2-NHS
Quick viewAzido-PEG1-CH2CO2-NHS
242.19≥95% Pricing
AP11529Azido-PEG2-CH2CO2-NHS
Quick viewAzido-PEG2-CH2CO2-NHS
286.24≥95% Pricing
AP11530Azido-PEG3-CH2CO2-NHS
Quick viewAzido-PEG3-CH2CO2-NHS
330.29≥95% Pricing
AP11531Azido-PEG4-CH2CO2-NHS
Quick viewAzido-PEG4-CH2CO2-NHS
374.35≥95% Pricing
AP11532Azido-PEG5-CH2CO2-NHS
Quick viewAzido-PEG5-CH2CO2-NHS
418.40≥95% Pricing
AP11533Azido-PEG8-CH2CO2-NHS
Quick viewAzido-PEG8-CH2CO2-NHS
550.56≥95% Pricing
Azido-PEG-NHS ester
AP11522Azidoacetic acid NHS ester
Quick viewAzidoacetic acid NHS ester
198.14≥95% Pricing
AP147183-Azidopropanoic acid NHS ester
Quick view3-Azidopropanoic acid NHS ester
212.20≥95% Pricing
AP11523Azido-PEG1-NHS ester
Quick viewAzido-PEG1-NHS ester
256.22≥95% Pricing
AP11524Azido-PEG2-NHS ester
Quick viewAzido-PEG2-NHS ester
300.27≥95% Pricing
AP10258Azido-PEG3-NHS ester
Quick viewAzido-PEG3-NHS ester
344.32≥95% Pricing
AP10259Azido-PEG4-NHS ester
Quick viewAzido-PEG4-NHS ester
388.37≥95% Pricing
AP11525Azido-PEG5-NHS ester
Quick viewAzido-PEG5-NHS ester
432.43≥95% Pricing
AP10260Azido-PEG6-NHS ester
Quick viewAzido-PEG6-NHS ester
476.48≥95% Pricing
AP13240Azido-PEG7-NHS ester
Quick viewAzido-PEG7-NHS ester
520.5≥95% Pricing
AP10261Azido-PEG8-NHS ester
Quick viewAzido-PEG8-NHS ester
564.58≥95% Pricing
AP11526Azido-PEG9-NHS ester
Quick viewAzido-PEG9-NHS ester
608.64≥95% Pricing
AP11527Azido-PEG10-NHS ester
Quick viewAzido-PEG10-NHS ester
652.7≥95% Pricing
AP10262Azido-PEG12-NHS ester
Quick viewAzido-PEG12-NHS ester
740.79≥95% Pricing
AP10263Azido-PEG16-NHS ester
Quick viewAzido-PEG16-NHS ester
917.01≥95% Pricing
AP10264Azido-PEG24-NHS ester
Quick viewAzido-PEG24-NHS ester
1269.43≥95% Pricing
Azido-PEG-succinimidyl carbonate
AP10095Azido-peg3-succinimidyl carbonate
Quick viewAzido-peg3-succinimidyl carbonate
360.32≥95% Pricing
AP10094Azido-PEG5-succinimidyl carbonate
Quick viewAzido-PEG5-succinimidyl carbonate
448.43≥95% Pricing
Benzyloxy carbonyl-PEG-NHS ester
AP11672Benzyloxy carbonyl-PEG3-NHS ester
Quick viewBenzyloxy carbonyl-PEG3-NHS ester
437.45≥95% Pricing
AP13374Benzyloxy carbonyl-PEG4-NHS ester
Quick viewBenzyloxy carbonyl-PEG4-NHS ester
481.5≥98% Pricing
Biotin-NHS Ester
AP12608Desthiobiotin NHS Ester
Quick viewDesthiobiotin NHS Ester
311.34≥95% Pricing
AP10489Biotin-NHS Ester
Quick viewBiotin-NHS Ester
341.38≥95% Pricing
AP10492Biotin-LC-NHS Ester
Quick viewBiotin-LC-NHS Ester
454.54≥95% Pricing
AP10496Biotin-SLC-NHS Ester
Quick viewBiotin-SLC-NHS Ester
524.68≥95% Pricing
AP10494Biotin-LC-LC-NHS Ester
Quick viewBiotin-LC-LC-NHS Ester
567.70≥95% Pricing
Bis-aliphatic-NHS ester
AP11958DSG Crosslinker
Quick viewDSG Crosslinker
326.26≥95% Pricing
AP11959DSS Crosslinker
Quick viewDSS Crosslinker
368.34≥95% Pricing
Bis-PEG-NHS
AP11502Bis-PEG1-NHS ester
Quick viewBis-PEG1-NHS ester
356.29≥95% Pricing
AP10914Bis-PEG2-NHS ester
Quick viewBis-PEG2-NHS ester
400.34≥95% Pricing
AP11503Bis-PEG3-NHS ester
Quick viewBis-PEG3-NHS ester
444.39≥95% Pricing
AP11504Bis-PEG4-NHS ester
Quick viewBis-PEG4-NHS ester
488.44≥95% Pricing
AP11505Bis-PEG5-NHS ester
Quick viewBis-PEG5-NHS ester
532.50≥95% Pricing
AP11506Bis-PEG6-NHS ester
Quick viewBis-PEG6-NHS ester
576.55≥95% Pricing
AP11507Bis-PEG7-NHS ester
Quick viewBis-PEG7-NHS ester
620.60≥95% Pricing
AP13376Bis-PEG8-NHS ester
Quick viewBis-PEG8-NHS ester
664.7≥98% Pricing
AP11508Bis-PEG9-NHS ester
Quick viewBis-PEG9-NHS ester
708.71≥95% Pricing
AP11509Bis-PEG10-NHS ester
Quick viewBis-PEG10-NHS ester
752.76≥95% Pricing
AP11510Bis-PEG11-NHS ester
Quick viewBis-PEG11-NHS ester
796.82≥95% Pricing
AP13382Bis-PEG12-NHS ester
Quick viewBis-PEG12-NHS ester
840.9≥97% Pricing
AP11511Bis-PEG13-NHS ester
Quick viewBis-PEG13-NHS ester
884.92≥95% Pricing
AP11512Bis-PEG17-NHS ester
Quick viewBis-PEG17-NHS ester
1061.13≥95% Pricing
AP13377Bis-PEG18-NHS ester
Quick viewBis-PEG18-NHS ester
1105.2≥98% Pricing
AP11513Bis-PE21-NHS ester
Quick viewBis-PE21-NHS ester
1237.34≥95% Pricing
AP11514Bis-PEG25-NHS ester
Quick viewBis-PEG25-NHS ester
1413.55≥95% Pricing
Branched PEG NHS ester
AP11702N-(Azido-PEG2)-N-Boc-PEG3-NHS ester
Quick viewN-(Azido-PEG2)-N-Boc-PEG3-NHS ester
575.62≥95% Pricing
AP11703N-(Azido-PEG2)-N-Boc-PEG4-NHS ester
Quick viewN-(Azido-PEG2)-N-Boc-PEG4-NHS ester
619.67≥95% Pricing
AP11704N-(Azido-PEG3)-N-Boc-PEG3-NHS ester
Quick viewN-(Azido-PEG3)-N-Boc-PEG3-NHS ester
619.67≥95% Pricing
AP117002-(Azido-PEG3-amido)-1,3-bis(NHS Ester)
Quick view2-(Azido-PEG3-amido)-1,3-bis(NHS Ester)
658.62≥95% Pricing
AP11705N-(Azido-PEG3)-N-Boc-PEG4-NHS ester
Quick viewN-(Azido-PEG3)-N-Boc-PEG4-NHS ester
663.72≥95% Pricing
AP11747N-Mal-N-bis(PEG2-NHS ester)
Quick viewN-Mal-N-bis(PEG2-NHS ester)
682.64≥95% Pricing
AP11750N-Boc-N-bis(PEG3-NHS ester)
Quick viewN-Boc-N-bis(PEG3-NHS ester)
719.74≥95% Pricing
AP11699N-NHS-PEG3-N-bisPEG3-azide
Quick viewN-NHS-PEG3-N-bisPEG3-azide
720.78≥95% Pricing
AP15299N-(PFP ester-PEG3)-N-bis(PEG3-azide)
Quick viewN-(PFP ester-PEG3)-N-bis(PEG3-azide)
789.8≥95% Pricing
AP11751N-Boc-N-bis(PEG4-NHS ester)
Quick viewN-Boc-N-bis(PEG4-NHS ester)
807.84≥95% Pricing
AP11096N-Desthiobiotin-N-bis(PEG4-t-butyl ester)
Quick viewN-Desthiobiotin-N-bis(PEG4-t-butyl ester)
822.05≥95% Pricing
AP11748N-Mal-N-bis(PEG4-NHS ester)
Quick viewN-Mal-N-bis(PEG4-NHS ester)
858.85≥95% Pricing
AP11095N-Desthiobiotin-N-bis(PEG4-NHS ester)
Quick viewN-Desthiobiotin-N-bis(PEG4-NHS ester)
903.98≥95% Pricing
AP11701N-(Azido-PEG4)-N-bis(PEG4-NHS ester)
Quick viewN-(Azido-PEG4)-N-bis(PEG4-NHS ester)
981.02≥95% Pricing
AP13284N-(NHS ester-PEG3)-N-bis(PEG3-Mal)
Quick viewN-(NHS ester-PEG3)-N-bis(PEG3-Mal)
 999≥95% Pricing
AP11094N-(DBCO-PEG4)-N-Biotin-PEG4-NHS
Quick viewN-(DBCO-PEG4)-N-Biotin-PEG4-NHS
1095.27≥95% Pricing
AP11752NThiol-PEG4-(m-PEG4)3-ester
Quick viewNThiol-PEG4-(m-PEG4)3-ester
1363.55≥95% Pricing
AP11753NThiol-PEG4-(m-PEG12)3-ester
Quick viewNThiol-PEG4-(m-PEG12)3-ester
2420.83≥95% Pricing
AP13229N-(TCO)-N-bis(PEG4-NHS ester)
Quick viewN-(TCO)-N-bis(PEG4-NHS ester)
859.9≥98% Pricing
AP13415Methyltetrazine-amido-N-bis(PEG4-NHS ester)
Quick viewMethyltetrazine-amido-N-bis(PEG4-NHS ester)
 919.9≥98% Pricing
AP13378DBCO-N-bis(PEG4-NHS ester)
Quick viewDBCO-N-bis(PEG4-NHS ester)
995.1≥95% Pricing
AP13286N-(Mal-PEG4)-N-Fluorescein-PEG4-NHS ester
Quick viewN-(Mal-PEG4)-N-Fluorescein-PEG4-NHS ester
1122.2≥96% Pricing
Bromoacetamido-PEG-NHS ester
AP120163-(2-bromoacetamido)propanoic acid NHS ester
Quick view3-(2-bromoacetamido)propanoic acid NHS ester
307.1≥95% Pricing
AP12017Bromoacetamido-PEG2-NHS ester
Quick viewBromoacetamido-PEG2-NHS ester
395.21≥95% Pricing
AP10955Bromoacetamido-PEG4-NHS ester
Quick viewBromoacetamido-PEG4-NHS ester
483.31≥95% Pricing
Chloroacetamido-PEG-NHS ester
AP12029Chloroacetamido-PEG4-NHS ester
Quick viewChloroacetamido-PEG4-NHS ester
438.86≥95% Pricing
DNP-PEG-CH2 NHS ester
AP10121DNP-PEG3-CH2 NHS ester
Quick viewDNP-PEG3-CH2 NHS ester
470.39≥95% Pricing
AP10117DNP-PEG4-CH2 NHS ester
Quick viewDNP-PEG4-CH2 NHS ester
514.44≥95% Pricing
DNP-PEG-NHS ester
AP12230DNP-PEG4-NHS ester
Quick viewDNP-PEG4-NHS ester
528.47≥95% Pricing
AP12231DNP-PEG12-NHS ester
Quick viewDNP-PEG12-NHS ester
880.9≥95% Pricing
Fmoc-aminooxy-PEG-NHS ester
AP12088Fmoc-aminooxy-PEG12-NHS ester
Quick viewFmoc-aminooxy-PEG12-NHS ester
953.05≥95% Pricing
Fmoc-NMe-PEG-NHS ester
AP11107Fmoc-NMe-PEG4-NHS ester
Quick viewFmoc-NMe-PEG4-NHS ester
598.65≥95% Pricing
Fmoc-PEG-CH2CO2-NHS
AP10915FmocNH-PEG2-CH2CO2-NHS ester
Quick viewFmocNH-PEG2-CH2CO2-NHS ester
482.48≥95% Pricing
AP10916FmocNH-PEG3-CH2CO2-NHS ester
Quick viewFmocNH-PEG3-CH2CO2-NHS ester
526.54≥95% Pricing
AP10917FmocNH-PEG5-CH2CO2-NHS ester
Quick viewFmocNH-PEG5-CH2CO2-NHS ester
614.64≥95% Pricing
Fmoc-PEG-NHS ester
AP11100Fmoc-PEG1-NHS ester
Quick viewFmoc-PEG1-NHS ester
452.46≥95% Pricing
AP10727Fmoc-PEG2-NHS ester
Quick viewFmoc-PEG2-NHS ester
496.51≥95% Pricing
AP11101Fmoc-PEG3-NHS ester
Quick viewFmoc-PEG3-NHS ester
540.57≥95% Pricing
AP11102Fmoc-PEG4-NHS ester
Quick viewFmoc-PEG4-NHS ester
584.62≥95% Pricing
AP11103Fmoc-PEG5-NHS ester
Quick viewFmoc-PEG5-NHS ester
628.68≥95% Pricing
AP11104Fmoc-PEG6-NHS ester
Quick viewFmoc-PEG6-NHS ester
672.73≥95% Pricing
AP10355Fmoc-PEG8-NHS ester
Quick viewFmoc-PEG8-NHS ester
760.83≥95% Pricing
AP11105Fmoc-PEG12-NHS ester
Quick viewFmoc-PEG12-NHS ester
937.05≥95% Pricing
AP11106Fmoc-PEG24-NHS ester
Quick viewFmoc-PEG24-NHS ester
1465.68≥95% Pricing
Folate-PEG-NHS ester
AP10011Folate PEG3 NHS ester
Quick viewFolate PEG3 NHS ester
741.71≥95% Pricing
AP15300Folate PEG10 NHS ester
Quick viewFolate PEG10 NHS ester
1050.086≥95% Pricing
HyNic-PEG-NHS ester
AP10135HyNic NHS ester
Quick viewHyNic NHS ester
290.28≥95% Pricing
Lipoamide-PEG-NHS
AP11412alpha-lipoic acid-NHS
Quick viewalpha-lipoic acid-NHS
303.39≥95% Pricing
M-PEG-NHS ester
AP11331m-PEG1-NHS ester
Quick viewm-PEG1-NHS ester
201.18≥95% Pricing
AP13398m-PEG2-NHS ester
Quick viewm-PEG2-NHS ester
245.2≥98% Pricing
AP10183m-PEG3-NHS Ester
Quick viewm-PEG3-NHS Ester
289.28≥95% Pricing
AP10184m-PEG4 NHS Ester
Quick viewm-PEG4 NHS Ester
333.33≥95% Pricing
AP10985m-PEG5-NHS ester
Quick viewm-PEG5-NHS ester
377.39≥95% Pricing
AP11332m-PEG6-NHS ester
Quick viewm-PEG6-NHS ester
421.44≥95% Pricing
AP11333m-PEG7-NHS ester
Quick viewm-PEG7-NHS ester
465.5≥95% Pricing
AP10993m-PEG8-NHS ester
Quick viewm-PEG8-NHS ester
509.55≥95% Pricing
AP11334m-PEG9-NHS ester
Quick viewm-PEG9-NHS ester
553.6≥95% Pricing
AP11343m-PEG9 NHS succinate
Quick viewm-PEG9 NHS succinate
581.61≥95% Pricing
AP11335m-PEG10-NHS ester
Quick viewm-PEG10-NHS ester
597.66≥95% Pricing
AP11336m-PEG11-NHS ester
Quick viewm-PEG11-NHS ester
641.71≥95% Pricing
AP10185m-PEG12 NHS Ester
Quick viewm-PEG12 NHS Ester
685.76≥95% Pricing
AP11337m-PEG13-NHS ester
Quick viewm-PEG13-NHS ester
729.81≥95% Pricing
AP11338m-PEG16-NHS ester
Quick viewm-PEG16-NHS ester
861.97≥95% Pricing
AP11339m-PEG17-NHS ester
Quick viewm-PEG17-NHS ester
906.03≥95% Pricing
AP11340m-PEG24-NHS ester
Quick viewm-PEG24-NHS ester
1214.4≥95% Pricing
AP11341m-PEG25-NHS ester
Quick viewm-PEG25-NHS ester
1258.45≥95% Pricing
AP11342m-PEG37-NHS ester
Quick viewm-PEG37-NHS ester
1787.09≥95% Pricing
AP15719m-PEG49-NHS ester
Quick viewm-PEG49-NHS ester
2315.70≥95% Pricing
M-PEG-succinimidyl carbonate
AP10092m-PEG4-NHS carbonate
Quick viewm-PEG4-NHS carbonate
305.28≥95% Pricing
AP10093m-PEG5-NHS carbonate
Quick viewm-PEG5-NHS carbonate
349.33≥95% Pricing
AP11828m-PEG5-succinimidyl carbonate
Quick viewm-PEG5-succinimidyl carbonate
393.39≥95% Pricing
AP11829m-PEG8-succinimidyl carbonate
Quick viewm-PEG8-succinimidyl carbonate
525.55≥95% Pricing
Mal-Alkyl-NHS ester
AP14624N-(alfa-Maleimidoacetoxy)succinimide
Quick viewN-(alfa-Maleimidoacetoxy)succinimide
252.20≥95% Pricing
AP10146Mal NHS ester
Quick viewMal NHS ester
266.21≥95% Pricing
AP119485-Maleimido-pentanoic NHS ester
Quick view5-Maleimido-pentanoic NHS ester
294.26≥95% Pricing
AP10549Mal-C6-NHS Ester
Quick viewMal-C6-NHS Ester
308.29≥95% Pricing
AP15071SMCC
Quick viewSMCC
334.30≥95% Pricing
AP114916-Maleimidocaproic acid PFP ester
Quick view6-Maleimidocaproic acid PFP ester
377.27≥95% Pricing
AP10550Mal-C11-NHS ester
Quick viewMal-C11-NHS ester
378.42≥95% Pricing
Mal-amido-PEG-NHS ester
AP10938Mal-amido-PEG1 NHS ester
Quick viewMal-amido-PEG1 NHS ester
381.34≥95% Pricing
AP11480Mal-amido-PEG2 NHS ester
Quick viewMal-amido-PEG2 NHS ester
425.39≥95% Pricing
AP10939Mal-amido-PEG3 NHS ester
Quick viewMal-amido-PEG3 NHS ester
469.45≥95% Pricing
AP10227Mal-amido-PEG4 NHS ester
Quick viewMal-amido-PEG4 NHS ester
513.50≥95% Pricing
AP10940Mal-amido-PEG5 NHS ester
Quick viewMal-amido-PEG5 NHS ester
557.55≥95% Pricing
AP11481Mal-amido-PEG6 NHS ester
Quick viewMal-amido-PEG6 NHS ester
601.61≥95% Pricing
AP10941Mal-amido-PEG7 NHS Ester
Quick viewMal-amido-PEG7 NHS Ester
645.66≥95% Pricing
AP10978Mal-amido-PEG8 NHS ester
Quick viewMal-amido-PEG8 NHS ester
689.71≥95% Pricing
AP14625Mal-amido-PEG10 NHS ester
Quick viewMal-amido-PEG10 NHS ester
777.80≥95% Pricing
AP10942Mal-Amido-PEG12 NHS Ester
Quick viewMal-Amido-PEG12 NHS Ester
865.92≥95% Pricing
AP10943Mal-amido-PEG24 NHS ester
Quick viewMal-amido-PEG24 NHS ester
1394.56≥95% Pricing
Mal-PEG-NHS ester
AP11448Mal-PEG1-NHS ester
Quick viewMal-PEG1-NHS ester
310.26≥95% Pricing
AP11449Mal-PEG2-NHS ester
Quick viewMal-PEG2-NHS ester
354.32≥95% Pricing
AP10054Mal-PEG3-CH2 NHS ester
Quick viewMal-PEG3-CH2 NHS ester
384.34≥95% Pricing
AP11450Mal-PEG3-NHS ester
Quick viewMal-PEG3-NHS ester
398.37≥95% Pricing
AP10698Mal-PEG4-NHS ester
Quick viewMal-PEG4-NHS ester
442.42≥95% Pricing
AP11451Mal-PEG5-NHS ester
Quick viewMal-PEG5-NHS ester
486.47≥95% Pricing
AP11452Mal-PEG6-NHS ester
Quick viewMal-PEG6-NHS ester
530.53≥95% Pricing
AP11453Mal-PEG8-NHS ester
Quick viewMal-PEG8-NHS ester
618.63≥95% Pricing
AP11454Mal-PEG12-NHS ester
Quick viewMal-PEG12-NHS ester
794.85≥95% Pricing
AP15710Mal-PEG16-NHS
Quick viewMal-PEG16-NHS
1042.14≥95% Pricing
AP15705Mal-PEG36-NHS
Quick viewMal-PEG36-NHS
1923.18≥90% Pricing
other-PEG-NHS ester
AP15575Thiazole Orange NHS ester
Quick viewThiazole Orange NHS ester
538.07≥95% Pricing
AP14562N-Boc-N'-(PEG1-t-butyl ester)-L-Lysine-NHS ester
Quick viewN-Boc-N'-(PEG1-t-butyl ester)-L-Lysine-NHS ester
543.6≥95% Pricing
AP15465DusQ 1 NHS ester
Quick viewDusQ 1 NHS ester
629.67≥NMR 1H and HPLC-MS (95+%) Pricing
AP15466DusQ 2 NHS ester
Quick viewDusQ 2 NHS ester
631.64≥NMR 1H, HPLC-MS (95%) Pricing
AP13836Acridinium NHS ester
Quick viewAcridinium NHS ester
632.6≥98% Pricing
AP15467DusQ 21 NHS ester
Quick viewDusQ 21 NHS ester
815.35≥NMR 1H and HPLC-MS (95+%) Pricing
Phe-Lys(Boc)-PAB
AP14619Mc-Phe-Lys(Boc)-PAB
Quick viewMc-Phe-Lys(Boc)-PAB
691.80≥95% Pricing
AP14620Fmoc-Phe-Lys(Boc)-PAB
Quick viewFmoc-Phe-Lys(Boc)-PAB
720.90≥95% Pricing
Propargyl-PEG-CH2CO2-NHS
AP12280Propargyl-PEG4-CH2CO2-NHS
Quick viewPropargyl-PEG4-CH2CO2-NHS
343.33≥95% Pricing
AP12281Propargyl-PEG5-CH2CO2-NHS
Quick viewPropargyl-PEG5-CH2CO2-NHS
387.39≥95% Pricing
Propargyl-PEG-NHS ester
AP13740Alkyne NHS ester (hexynoic acid NHS ester)
Quick viewAlkyne NHS ester (hexynoic acid NHS ester)
209.20≥95% Pricing
AP13852Propargyl-NHS Ester
Quick viewPropargyl-NHS Ester
225.20≥95% Pricing
AP11026Propargyl-PEG1 NHS ester
Quick viewPropargyl-PEG1 NHS ester
225.2≥95% Pricing
AP10918Propargyl-PEG2-NHS ester
Quick viewPropargyl-PEG2-NHS ester
269.25≥95% Pricing
AP12275Propargyl-PEG3-NHS ester
Quick viewPropargyl-PEG3-NHS ester
313.31≥95% Pricing
AP12276Propargyl-PEG4-NHS ester
Quick viewPropargyl-PEG4-NHS ester
357.36≥95% Pricing
AP12277Propargyl-PEG5-NHS ester
Quick viewPropargyl-PEG5-NHS ester
401.41≥95% Pricing
AP10998Propargyl-PEG6-NHS ester
Quick viewPropargyl-PEG6-NHS ester
445.47≥95% Pricing
AP12278Propargyl-PEG7-NHS ester
Quick viewPropargyl-PEG7-NHS ester
489.52≥95% Pricing
AP12279Propargyl-PEG8-NHS ester
Quick viewPropargyl-PEG8-NHS ester
533.57≥95% Pricing
AP15078Propargyl-PEG13-NHS ester
Quick viewPropargyl-PEG13-NHS ester
753.83≥95% Pricing
SPDP-PEG-NHS-ester
AP10042SPDP acid NHS ester
Quick viewSPDP acid NHS ester
312.37≥98% Pricing
AP11950SPDP-C6-NHS ester
Quick viewSPDP-C6-NHS ester
425.52≥95% Pricing
AP11951SPDP-C6-Sulfo-NHS ester
Quick viewSPDP-C6-Sulfo-NHS ester
527.56≥95% Pricing
AP11433SPDP-PEG4-NHS ester
Quick viewSPDP-PEG4-NHS ester
559.65≥95% Pricing
AP11832SPDP-C6-Gly-Leu-NHS ester
Quick viewSPDP-C6-Gly-Leu-NHS ester
595.73≥95% Pricing
AP11434SPDP-PEG6-NHS ester
Quick viewSPDP-PEG6-NHS ester
647.76≥95% Pricing
AP11435SPDP-PEG8-NHS ester
Quick viewSPDP-PEG8-NHS ester
735.86≥95% Pricing
AP11436SPDP-PEG12-NHS ester
Quick viewSPDP-PEG12-NHS ester
912.07≥95% Pricing
AP13379SPDP-PEG-24-NHS ester
Quick viewSPDP-PEG-24-NHS ester
1439.7≥95% Pricing
AP13380SPDP-PEG36-NHS ester
Quick viewSPDP-PEG36-NHS ester
1968.4≥92% Pricing
t-Boc-aliphatic-NHS ester
AP143146-(tert-Butoxy)-6-oxohexanoic NHS ester
Quick view6-(tert-Butoxy)-6-oxohexanoic NHS ester
299.30≥95% Pricing
AP1431510-(tert-Butoxy)-10-oxodecanoic NHS ester
Quick view10-(tert-Butoxy)-10-oxodecanoic NHS ester
355.40≥95% Pricing
AP11963t-butyl-octadecanedioate-NHS ester
Quick viewt-butyl-octadecanedioate-NHS ester
467.65≥95% Pricing
t-Boc-Aminooxy-PEG-NHS ester
AP12063t-Boc-Aminooxy-PEG4-NHS ester
Quick viewt-Boc-Aminooxy-PEG4-NHS ester
478.5≥95% Pricing
AP12064t-Boc-Aminooxy-PEG12-NHS ester
Quick viewt-Boc-Aminooxy-PEG12-NHS ester
830.92≥95% Pricing
t-Boc-N-Amido-PEG-CH2CO2-NHS ester
AP10906t-Boc-N-Amido-PEG1-CH2CO2-NHS ester
Quick viewt-Boc-N-Amido-PEG1-CH2CO2-NHS ester
316.31≥95% Pricing
AP10907t-Boc-N-Amido-PEG2-CH2CO2-NHS ester
Quick viewt-Boc-N-Amido-PEG2-CH2CO2-NHS ester
360.36≥95% Pricing
AP10908t-Boc-N-Amido-PEG3-CH2CO2-NHS ester
Quick viewt-Boc-N-Amido-PEG3-CH2CO2-NHS ester
404.41≥95% Pricing
AP10909t-Boc-N-Amido-PEG4-CH2CO2-NHS ester
Quick viewt-Boc-N-Amido-PEG4-CH2CO2-NHS ester
448.47≥95% Pricing
AP10910t-Boc-N-Amido-PEG5-CH2CO2-NHS ester
Quick viewt-Boc-N-Amido-PEG5-CH2CO2-NHS ester
492.52≥95% Pricing
AP10911t-Boc-N-Amido-PEG6-CH2CO2-NHS ester
Quick viewt-Boc-N-Amido-PEG6-CH2CO2-NHS ester
536.58≥95% Pricing
AP10912t-Boc-N-Amido-PEG7-CH2CO2-NHS ester
Quick viewt-Boc-N-Amido-PEG7-CH2CO2-NHS ester
580.63≥95% Pricing
t-Boc-N-amido-PEG-NHS ester
AP11614t-Boc-N-amido-PEG1-NHS ester
Quick viewt-Boc-N-amido-PEG1-NHS ester
330.34≥95% Pricing
AP10712T-Boc-N-amido-PEG2-NHS ester
Quick viewT-Boc-N-amido-PEG2-NHS ester
374.39≥95% Pricing
AP11615t-Boc-N-amido-PEG3-NHS ester
Quick viewt-Boc-N-amido-PEG3-NHS ester
418.44≥95% Pricing
AP10902t-Boc-N-Amido-PEG4-NHS ester
Quick viewt-Boc-N-Amido-PEG4-NHS ester
462.49≥95% Pricing
AP11616t-Boc-N-amido-PEG5-NHS ester
Quick viewt-Boc-N-amido-PEG5-NHS ester
506.55≥95% Pricing
AP10903t-Boc-N-Amido-PEG6-NHS ester
Quick viewt-Boc-N-Amido-PEG6-NHS ester
550.60≥95% Pricing
AP10904t-Boc-N-Amido-PEG7-NHS ester
Quick viewt-Boc-N-Amido-PEG7-NHS ester
594.66≥95% Pricing
AP10905t-Boc-N-Amido-PEG8-NHS ester
Quick viewt-Boc-N-Amido-PEG8-NHS ester
638.70≥95% Pricing
AP11617t-Boc-N-amido-PEG10-NHS ester
Quick viewt-Boc-N-amido-PEG10-NHS ester
726.81≥95% Pricing
AP14097t-Boc-N-amido-PEG12-NHS ester
Quick viewt-Boc-N-amido-PEG12-NHS ester
814.90≥95% Pricing
AP14099t-Boc-N-amido-PEG16-NHS ester
Quick viewt-Boc-N-amido-PEG16-NHS ester
991.10≥95% Pricing
t-Butoxycarbonyl-PEG-NHS ester
AP11830t-Butoxycarbonyl-PEG1-NHS ester
Quick viewt-Butoxycarbonyl-PEG1-NHS ester
315.32≥95% Pricing
AP13412t-Butoxycarbonyl-PEG2-NHS ester
Quick viewt-Butoxycarbonyl-PEG2-NHS ester
359.4≥95% Pricing
AP13383t-Butoxycarbonyl-PEG3-NHS ester
Quick viewt-Butoxycarbonyl-PEG3-NHS ester
403.4≥98% Pricing
AP11831t-Butoxycarbonyl-PEG4-NHS ester
Quick viewt-Butoxycarbonyl-PEG4-NHS ester
447.48≥95% Pricing
TCO-PEG-NHS ester
AP13857TCO-NHS Ester (equatorial)
Quick viewTCO-NHS Ester (equatorial)
267.28≥95% Pricing
AP12681TCO-NHS Ester (axial)
Quick viewTCO-NHS Ester (axial)
267.28≥95% Pricing
AP10003TCO-NHS ester
Quick viewTCO-NHS ester
267.30≥95% Pricing
AP13056TCO-benzoyl-NHS ester
Quick viewTCO-benzoyl-NHS ester
357.4≥95% Pricing
AP10815TCO-PEG1-NHS ester
Quick viewTCO-PEG1-NHS ester
382.41≥95% Pricing
AP10816TCO-PEG2-NHS ester
Quick viewTCO-PEG2-NHS ester
426.46≥95% Pricing
AP10817TCO-PEG3-NHS ester
Quick viewTCO-PEG3-NHS ester
470.52≥95% Pricing
AP10101TCO-PEG4-CH2 NHS ester
Quick viewTCO-PEG4-CH2 NHS ester
500.54≥95% Pricing
AP10818TCO-PEG4-NHS ester
Quick viewTCO-PEG4-NHS ester
514.57≥95% Pricing
AP13228TCO-PEG2-Sulfo-NHS ester
Quick viewTCO-PEG2-Sulfo-NHS ester
528.5≥95% Pricing
AP10099TCO-PEG5 NHS ester
Quick viewTCO-PEG5 NHS ester
558.62≥95% Pricing
AP10820TCO-PEG6-NHS ester
Quick viewTCO-PEG6-NHS ester
602.67≥95% Pricing
AP10821TCO-PEG7-NHS ester
Quick viewTCO-PEG7-NHS ester
646.73≥95% Pricing
AP11858TCO-PEG8-NHS ester
Quick viewTCO-PEG8-NHS ester
690.78≥95% Pricing
AP11859TCO-PEG12-NHS ester
Quick viewTCO-PEG12-NHS ester
867≥95% Pricing
AP11860TCO-PEG24-NHS ester
Quick viewTCO-PEG24-NHS ester
1395.63≥95% Pricing
AP13221TCO-PEG36-NHS ester
Quick viewTCO-PEG36-NHS ester
1924.3≥95% Pricing
Tetrazine-PEG-NHS ester
AP10691Tetrazine-NHS ester
Quick viewTetrazine-NHS ester
313.27≥95% Pricing
AP10692Methyltetrazine-NHS ester
Quick viewMethyltetrazine-NHS ester
327.30≥95% Pricing
AP15261Tetrazine-C5-NHS ester
Quick viewTetrazine-C5-NHS ester
398.37≥95% Pricing
AP11842Methyltetrazine-Sulfo-NHS ester
Quick viewMethyltetrazine-Sulfo-NHS ester
429.34≥95% Pricing
AP15682Methyltetrazine-SS-NHS
Quick viewMethyltetrazine-SS-NHS
490.56≥95% Pricing
AP10720Methyltetrazine-PEG4-NHS ester
Quick viewMethyltetrazine-PEG4-NHS ester
533.53≥95% Pricing
AP11843Tetrazine-PEG5-NHS ester
Quick viewTetrazine-PEG5-NHS ester
604.62≥95% Pricing
AP15686Methyltetrazine-PEG5-NHS
Quick viewMethyltetrazine-PEG5-NHS
618.64≥95% Pricing
AP11844Methyltetrazine-PEG8-NHS ester
Quick viewMethyltetrazine-PEG8-NHS ester
709.75≥95% Pricing
AP15649Tetrazine-PEG4-SS-NHS
Quick viewTetrazine-PEG4-SS-NHS
723.24≥90% Pricing
AP15690Methyltetrazine-PEG4-SS-NHS
Quick viewMethyltetrazine-PEG4-SS-NHS
737.84≥95% Pricing
AP15260Tetrazine-PEG9-NHS ester
Quick viewTetrazine-PEG9-NHS ester
780.83≥95% Pricing
AP11845Methyltetrazine-PEG12-NHS ester
Quick viewMethyltetrazine-PEG12-NHS ester
885.96≥95% Pricing
AP11846Methyltetrazine-PEG24-NHS ester
Quick viewMethyltetrazine-PEG24-NHS ester
1414.6≥95% Pricing
Thalidomide-O-PEG-NHS ester
AP13384Thalidomide-O-PEG2-NHS ester
Quick viewThalidomide-O-PEG2-NHS ester
531.5≥98% Pricing
AP12126Thalidomide-O-PEG4-NHS ester
Quick viewThalidomide-O-PEG4-NHS ester
619.58≥95% Pricing
AP13385Thalidomide-O-PEG6-NHS ester
Quick viewThalidomide-O-PEG6-NHS ester
707.7≥98% Pricing

Bulk Inquiry


    PEG NHS ester linkers are commonly used for crosslinking and labeling peptides and proteins. They react quickly with primary amine groups at the N-terminus and lysine residues of polypeptides. These amines, located on the surface of proteins, are easily accessible for bioconjugation. Their nucleophilic nature makes them ideal for reacting with PEG-NHS esters in protein labeling and crosslinking. Moreover, the functional groups at the opposite end of the linkers allow further conjugation with biomolecules or drug targets. Adding a PEG spacer improves the linker’s solubility, making it perfect for antibody-drug conjugations (ADC) in aqueous environments.

    Key Features:

    • Quick Reaction: PEG NHS esters react efficiently with primary amines on protein surfaces.
    • Dual Functionality: The opposite end allows further biomolecule or drug conjugation.
    • Improved Solubility: The PEG spacer enhances solubility, ideal for ADCs in water-based processes.

    Applications:

    • Fast protein and peptide labeling.
    • Efficient crosslinking for drug delivery.
    • Ideal for antibody-drug conjugations in aqueous media.
    PEG NHS ester linkers provide versatility and efficiency, making them essential for protein labeling and conjugation.