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AxisPharm offers high purity PEG Maleimide(Mal-PEG) linkers, which is a sulfhydryl (thiol/SH) group reactive PEG derivative used to selectively modify protein, peptide or any other surfaces with available sulfhydryl groups.
Maleimide PEG(Mal-PEG) allows efficient PEGylation of sulfhydryl groups at pH 6.5-7.5; the reaction of the maleimide group results in the formation of a thioether bond.

Cat# Name Structure M.W. Purity Pricing
Azido-PEG-Maleimide
AP11561Azido-PEG3-Maleimide369.38≥95% Pricing
BCN-endo-PEG-Maleimide
AP10138Mal-NH-PEG2-BCN475.54≥95% Pricing
AP10739BCN-endo-PEG3-Maleimide519.59≥95% Pricing
AP10738BCN-exo-PEG7-Maleimide695.80≥95% Pricing
Biotin-PEG-Mal
AP10540Biotin-PEG2-NH-Mal525.62≥95% Pricing
AP10541Biotin-PEG3-NH-Mal569.67≥95% Pricing
AP10542Biotin-PEG6-NH-Mal701.83≥95% Pricing
AP11041Biotin-PEG11-NH-Mal922.1≥95% Pricing
AP10543Biotin-PEG12-NH-Mal966.14≥95% Pricing
AP13266Mal-Cyclohexyl-PEG3-Biotin637.8≥95% Pricing
Bis-Mal-Lysine-PEG
AP11496Bis-Mal-Lysine-PEG4-acid695.72≥95% Pricing
AP11497Bis-Mal-Lysine-PEG4-TFP ester843.78≥95% Pricing
Bis-Mal-PEG
AP11492Bis-Mal-PEG3494.5≥95% Pricing
AP11493Bis-Mal-PEG6626.66≥95% Pricing
AP11494Bis-Mal-PEG11846.93≥95% Pricing
AP11495Bis-Mal-PEG191199.35≥95% Pricing
Boc-HyNic-PEG-Mal
AP10595Boc-HyNic-PEG1-Mal419.43≥95% Pricing
Branched PEG Maleimide
AP11754N-Mal-N-bis(PEG2-amine) TFA salt430.5≥95% Pricing
AP11743N-Mal-N-bis(PEG2-acid)488.49≥95% Pricing
AP11760N-Mal-N-bis(PEG2-t-butyl ester)600.71≥95% Pricing
AP11755N-Mal-N-bis(PEG4-amine) TFA salt606.71≥95% Pricing
AP11758N-Mal-N-bis(PEG2-NH-Boc)630.74≥95% Pricing
AP11744N-Mal-N-bis(PEG4-acid)664.7≥95% Pricing
AP11747N-Mal-N-bis(PEG2-NHS ester)682.64≥95% Pricing
AP11759N-Mal-N-bis(PEG4-NH-Boc)806.95≥95% Pricing
AP12209N-(Mal-PEG6)-N-bis(PEG3-amine) TFA salt854.01≥95% Pricing
AP11748N-Mal-N-bis(PEG4-NHS ester)858.85≥95% Pricing
AP13284N-(NHS ester-PEG3)-N-bis(PEG3-Mal) 999≥95% Pricing
AP11756Tri(Mal-PEG2-amide)-amine1077.16≥95% Pricing
AP11757N-(Mal-PEG6)-N-bis(PEG7-TCO)1652.97≥95% Pricing
AP13285N-(t-butyl ester-PEG3)-N-bis(PEG3-Mal)958.1≥95% Pricing
AP13267N-(Mal-PEG6)-N-bis(PEG3-Boc)1054.3≥98% Pricing
AP13286N-(Mal-PEG4)-N-Fluorescein-PEG4-NHS ester1122.2≥96% Pricing
DBCO-Maleimide & DBCO-PEG-Maleimide
AP10860DBCO-Maleimide356.37≥95% Pricing
AP10300DBCO-Mal427.45≥95% Pricing
AP10855DBCO-Sulfo-Maleimide578.60≥95% Pricing
AP10313DBCO-NH-PEG2-Mal586.64≥95% Pricing
AP10859DBCO-amido-PEG4-Maleimide603.66≥95% Pricing
AP13841DBCO-PEG4-Maleimide674.74≥95% Pricing
AP10858DBCO-amido-PEG4-amido-Maleimide674.74≥95% Pricing
AP10315DBCO-NH-PEG6-Mal762.85≥95% Pricing
AP12611Sulfo DBCO-PEG4-Maleimide825.89≥95% Pricing
AP10856DBCO-Sulfo-PEG4-Maleimide825.89≥95% Pricing
AP13183DBCO-PEG8-Maleimide851≥95% Pricing
AP10316DBCO-NH-PEG12-Maleimide1027.16≥95% Pricing
AP13184DBCO-PEG24-Maleimide1555.8≥95% Pricing
Dibromo-Mal-PEG
AP114993,4-Dibromo-Mal-PEG2-Amine TFA salt386.04≥95% Pricing
AP141453,4-Dibromo-Mal-PEG4-Amine474.10≥95% Pricing
AP101553,4-Dibromo-Mal-PEG2-Boc-Amine486.15≥95% Pricing
AP141433,4-Dibromo-Mal-PEG4-Acid503.10≥95% Pricing
AP115003,4-Dibromo-Mal-PEG4-t-butyl ester559.24≥95% Pricing
AP141443,4-Dibromo-Mal-PEG4-NHS ester600.20≥95% Pricing
AP141463,4-Dibromo-Mal-PEG8-Amine650.40≥95% Pricing
AP114983,4-Dibromo-Mal-PEG8-acid679.35≥95% Pricing
AP115013,4-Dibromo-Mal-PEG8-t-butyl ester735.45≥95% Pricing
DSPE-PEG-Mal
AP10163DSPE-PEG8-Mal1251.61≥95% Pricing
AP13885DSPE-PEG12-Mal1498.90≥95% Pricing
Folate-PEG-Mal
AP12982Folate-PEG1-Mal607.58≥95% Pricing
AP12983Folate-PEG2-Mal651.64≥95% Pricing
HyNic-PEG-Mal
AP10593HyNic-PEG1-Mal359.39≥95% Pricing
Lipoamide-PEG-Mal
AP11416Lipoamide-PEG3-Mal559.74≥95% Pricing
AP11417Lipoamide-PEG11-Mal884.11≥95% Pricing
M-PEG-Mal
AP10158m-PEG2-Mal199.20≥95% Pricing
AP10157m-PEG3-Mal243.26≥95% Pricing
AP11362m-PEG4-NH-Mal358.39≥95% Pricing
AP10186m-PEG6-amido-Mal446.49≥95% Pricing
AP10187m-PEG8-amido-Mal534.60≥95% Pricing
AP11363m-PEG12-NH-Mal710.82≥95% Pricing
AP11364m-PEG24-NH-Mal1239.45≥95% Pricing
AP11365m-PEG36-NH-Mal1768.09≥95% Pricing
AP11366m-PEG48-NH-Mal2296.72≥95% Pricing
Mal-Alkyl-acid
AP10544Mal-(CH2)2-COOH169.14≥95% Pricing
AP10545Mal-(CH2)3-COOH183.16≥95% Pricing
AP10546Mal-(CH2)5-COOH211.22≥95% Pricing
AP10547Mal-(CH2)10-COOH281.35≥95% Pricing
AP114875-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)pentanoic acid197.19≥95% Pricing
AP114884-((2,5-Dioxo-2H-pyrrol-1(5H)-yl)methyl)cyclohexanecarboxylic acid237.26≥95% Pricing
Mal-Alkyl-amine
AP114891-(2-Aminoethyl)-1H-pyrrole-2,5-dione TFA salt140.14≥95% Pricing
AP10651N-(6-Aminohexyl)maleimide TFA salt310.27≥95% Pricing
Mal-Alkyl-Bromide
AP11490Mal-PEG1-bromideomide248.08≥95% Pricing
Mal-Alkyl-NHS ester
AP10146Mal NHS ester266.21≥95% Pricing
AP10549Mal-C6-NHS ester308.29≥95% Pricing
AP10550Mal-C11-NHS ester378.42≥95% Pricing
Mal-Alkyl-t-Boc-amine
AP116306-Mal-C6-Boc-Amine296.37≥95% Pricing
Mal-amide-PEG-oxyamine
AP10062Mal-amide-PEG2-oxyamine315.32≥95% Pricing
AP10061Mal-amide-PEG3-oxyamine359.38≥95% Pricing
AP10060Mal-amide-PEG2-oxyamineBoc415.44≥95% Pricing
AP10059Mal-amide-PEG3-oxyamineBoc459.49≥95% Pricing
Mal-amido-PEG-acetic acid
AP10923Mal-propionylamido-PEG1-acetic acid270.24≥95% Pricing
AP10924Mal-propionylamido-PEG2-acetic acid314.29≥95% Pricing
AP10925Mal-propionylamido-PEG3-acetic acid358.35≥95% Pricing
AP10926Mal-propionylamido-PEG4-acetic acid402.4≥95% Pricing
AP10927Mal-propionylamido-PEG5-acetic acid446.45≥95% Pricing
AP10928Mal-propionylamido-PEG6-acetic acid490.51≥95% Pricing
AP10929Mal-propionylamido-PEG7-acetic acid534.56≥95% Pricing
AP10930Mal-propionylamido-PEG8-acetic acid578.61≥95% Pricing
Mal-amido-PEG-acid
AP10724Mal-amido-PEG2-acid328.32≥95% Pricing
AP10725Mal-amido-PEG3-acid372.37≥95% Pricing
AP10741Mal-amido-PEG4-acid416.42≥95% Pricing
AP11475Mal-amido-PEG6-acid504.53≥95% Pricing
AP10722Mal-amido-PEG7-acid548.58≥95% Pricing
AP10984Mal-amido-PEG8-acid592.64≥95% Pricing
AP10723Mal-amido-PEG9-acid636.69≥95% Pricing
AP11476Mal-amido-PEG10-acid680.75≥95% Pricing
AP11477Mal-amido-PEG12-acid768.85≥95% Pricing
AP11478Mal-amido-PEG24-acid1297.49≥95% Pricing
Mal-amido-PEG-amine
AP10745Mal-amido-PEG2-amine299.32≥95% Pricing
AP11479Mal-amido-PEG9-amine TFA salt607.7≥95% Pricing
AP13273Mal-amido-PEG11-amine TFA salt809.8≥97% Pricing
AP13272Mal-amido-PEG23-amine1224.5≥98% Pricing
Mal-amido-PEG-NHS acetate
AP10931Mal-propionylamido-PEG1-NHS acetate367.31≥95% Pricing
AP10932Mal-propionylamido-PEG2-NHS acetate411.37≥95% Pricing
AP10063Mal-amido-PEG3-NHS acetate455.42≥95% Pricing
AP10933Mal-propionylamido-PEG4-NHS acetate499.47≥95% Pricing
AP10934Mal-propionylamido-PEG5-NHS acetate543.53≥95% Pricing
AP10935Mal-propionylamido-PEG6-NHS acetate587.58≥95% Pricing
AP10936Mal-propionylamido-PEG7-NHS acetate631.63≥95% Pricing
AP10937Mal-propionylamido-PEG8-NHS acetate675.69≥95% Pricing
Mal-amido-PEG-NHS ester
AP10938Mal-amido-PEG1 NHS ester381.34≥95% Pricing
AP11480Mal-amido-PEG2 NHS ester425.39≥95% Pricing
AP10939Mal-amido-PEG3 NHS ester469.45≥95% Pricing
AP10227Mal-amido-PEG4 NHS ester513.50≥95% Pricing
AP10940Mal-amido-PEG5 NHS ester557.55≥95% Pricing
AP11481Mal-amido-PEG6 NHS ester601.61≥95% Pricing
AP10941Mal-amido-PEG7 NHS ester645.66≥95% Pricing
AP10978Mal-amido-PEG8 NHS ester689.71≥95% Pricing
AP10942Mal-amido-PEG12 NHS ester865.92≥95% Pricing
AP10943Mal-amido-PEG24 NHS ester1394.56≥95% Pricing
Mal-amido-PEG-TFP ester
AP11482Mal-amido-PEG2-TFP ester476.38≥95% Pricing
AP11483Mal-amido-PEG4-TFP ester564.49≥95% Pricing
AP11484Mal-amido-PEG8-TFP ester740.7≥95% Pricing
AP11485Mal-amido-PEG12-TFP ester916.91≥95% Pricing
AP11486Mal-amido-PEG24-TFP ester1445.55≥95% Pricing
AP13992Mal-amido-PEG36-TFP ester1974.20≥95% Pricing
Mal-PEG-acid
AP11444Mal-PEG1-acid213.19≥95% Pricing
AP10164Mal-PEG2-acid257.24≥95% Pricing
AP11445Mal-PEG3-acid301.3≥95% Pricing
AP10224Mal-PEG4-acid345.35≥95% Pricing
AP11446Mal-PEG5-acid389.4≥95% Pricing
AP10225Mal-PEG6-acid433.45≥95% Pricing
AP10226Mal-PEG8-acid521.56≥95% Pricing
AP11447Mal-PEG12-acid697.77≥95% Pricing
Mal-PEG-alcohol
AP11467Mal-PEG2-alcohol185.18≥95% Pricing
AP11468Mal-PEG3-alcohol229.23≥95% Pricing
AP11469Mal-PEG4-alcohol273.29≥95% Pricing
AP11470Mal-PEG8-alcohol449.5≥95% Pricing
AP13268Mal-PEG11-alcohol581.7≥98 Pricing
AP11471Mal-PEG12-alcohol625.71≥95% Pricing
Mal-PEG-amine
AP11472Mal-PEG2-amine TFA salt228.25≥95% Pricing
AP10050Mal-PEG3-amine272.30≥95% Pricing
AP13269Mal-PEG4-amine TFA salt316.4≥98% Pricing
Mal-PEG-azide
AP10055Mal-PEG2-azide254.24≥95% Pricing
AP10057Mal-PEG3-azide298.30≥95% Pricing
Mal-PEG-CH2COOH
AP10159Mal-PEG2-CH2COOH243.21≥95% Pricing
AP10156Mal-PEG3-CH2COOH287.27≥95% Pricing
AP10160Mal-PEG5-CH2COOH375.37≥95% Pricing
Mal-PEG-NH-Boc
AP11629Mal-NH-Boc240.26≥95% Pricing
AP11473Mal-PEG2-NH-Boc328.37≥95% Pricing
AP11474Mal-amido-PEG9-NH-Boc707.82≥95% Pricing
AP13289Mal-amido-PEG11-NH-Boc795.9≥98% Pricing
Mal-PEG-NHS ester
AP11448Mal-PEG1-NHS ester310.26≥95% Pricing
AP11449Mal-PEG2-NHS ester354.32≥95% Pricing
AP10054Mal-PEG3-CH2 NHS ester384.34≥95% Pricing
AP11450Mal-PEG3-NHS ester398.37≥95% Pricing
AP10698Mal-PEG4-NHS ester442.42≥95% Pricing
AP11451Mal-PEG5-NHS ester486.47≥95% Pricing
AP11452Mal-PEG6-NHS ester530.53≥95% Pricing
AP11453Mal-PEG8-NHS ester618.63≥95% Pricing
AP11454Mal-PEG12-NHS ester794.85≥95% Pricing
Mal-PEG-oxyamine
AP10056Mal-PEG2-oxyamine244.24≥95% Pricing
AP10058Mal-PEG3-oxyamine288.30≥95% Pricing
Mal-PEG-PFP ester
AP114916-Maleimidocaproic acid PFP ester377.27≥95% Pricing
AP11455Mal-PEG1-PFP379.24≥95% Pricing
AP11456Mal-PEG2-PFP423.29≥95% Pricing
AP11457Mal-PEG3-PFP467.35≥95% Pricing
AP11458Mal-PEG4-PFP511.4≥95% Pricing
AP11459Mal-PEG5-PFP555.45≥95% Pricing
AP11460Mal-PEG6-PFP599.5≥95% Pricing
Mal-PEG-t-butyl ester
AP11461Mal-PEG1-t-butyl ester269.3≥95% Pricing
AP10162Mal-PEG2-t-Butyl ester313.35≥95% Pricing
AP11462Mal-PEG3-t-butyl ester357.4≥95% Pricing
AP10699Mal-PEG4-t-butyl ester401.45≥95% Pricing
AP11463Mal-PEG5-t-butyl ester445.51≥95% Pricing
AP11466Mal-Amido-PEG4-t-butyl ester472.54≥95% Pricing
AP10987Mal-PEG6-t-butyl ester489.56≥95% Pricing
AP11464Mal-PEG8-t-butyl ester577.67≥95% Pricing
AP11465Mal-PEG12-t-butyl ester753.88≥95% Pricing
Mal-PEG-trimethylammonium chloride
AP13271Mal-PEG5-trimethylammonium chloride394.9≥98% Pricing
AP13270Mal-PEG4-trimethylammonium chloride394.9≥98% Pricing
Other-Mal-PEG
AP10646N-(2-Hydroxyethyl)maleimide141.12≥95% Pricing
AP106561-(3-hydroxypropyl)-1H-pyrrole-2,5-dione155.15≥95% Pricing
AP106471-(3-isocyanatopropyl)-1H-pyrrole-2,5-dione180.16≥95% Pricing
AP106526-Maleimido-1-Hexanal195.22≥95% Pricing
AP10680APN-Maleimide222.20≥95% Pricing
AP106551,4-Bis-maleimidobutane248.24≥95% Pricing
AP13274Mal-PEG2-Amide256.3≥97% Pricing
AP10052Mal-PEG3-CH2 tBu-ester343.37≥95% Pricing
AP13077Mal-PEG2-PNP350.28≥95% Pricing
AP10132Succinimidyl 6-(2-Boc-hydrazino) nicotinate350.33≥95% Pricing
AP10045Mal-CH2-Cyclohexylcarboxylhydrazide TFA365.31≥95% Pricing
AP10591Mal-PEG2-BocNH Tyrosine Methyl Ester462.5≥95% Pricing
AP10576Mal-PEG1 Folate608.56≥95% Pricing
AP12869Mal-PEG1-Val-Ala-PAB-PNP653.64≥95% Pricing
AP10577DibromoMal-PEG1 Folate766.35≥95% Pricing
PEG-Mal-PEG
AP11754N-Mal-N-bis(PEG2-amine) TFA salt430.5≥95% Pricing
AP11743N-Mal-N-bis(PEG2-acid)488.49≥95% Pricing
AP11760N-Mal-N-bis(PEG2-t-butyl ester)600.71≥95% Pricing
AP11755N-Mal-N-bis(PEG4-amine) TFA salt606.71≥95% Pricing
AP11758N-Mal-N-bis(PEG2-NH-Boc)630.74≥95% Pricing
AP11744N-Mal-N-bis(PEG4-acid)664.7≥95% Pricing
AP11747N-Mal-N-bis(PEG2-NHS ester)682.64≥95% Pricing
AP11759N-Mal-N-bis(PEG4-NH-Boc)806.95≥95% Pricing
AP11748N-Mal-N-bis(PEG4-NHS ester)858.85≥95% Pricing
Pomalidomide-PEG-Azide
AP13278Pomalidomide 4-PEG3-Azide 474.5≥95% Pricing
AP12130Pomalidomide-PEG4-Azide518.53≥95% Pricing
AP13279Pomalidomide-PEG5-Azide590.6≥98% Pricing
AP13887Pomalidomide-PEG8-Azide694.7≥95% Pricing
Propargyl-PEG-Maleimide
AP13859N-Propargyl-maleimide130.12≥95% Pricing
AP10161Mal-PEG2-propargyl223.23≥95% Pricing
AP13779Alkyne maleimide234.25≥95% Pricing
AP10049Mal-PEG3-propargyl267.28≥95% Pricing
AP10053Mal-PEG4-Propargyl311.33≥95% Pricing
TCO-PEG-Maleimide
AP10822TCO-PEG1-maleimide336.38≥95% Pricing
AP10823TCO-PEG2-maleimide380.44≥95% Pricing
AP10801TCO-PEG1-amido maleimide407.46≥95% Pricing
AP10824TCO-PEG3-maleimide424.49≥95% Pricing
AP10802TCO-PEG2-amido maleimide451.51≥95% Pricing
AP12629Sulfo TCO-Maleimide457.5≥95% Pricing
AP10825TCO-PEG4-maleimide468.54≥95% Pricing
AP10803TCO-PEG3-amido maleimide495.57≥95% Pricing
AP10826TCO-PEG5-maleimide512.59≥95% Pricing
AP12560TCO-C3-PEG3-C3-Amido-Maleimide523.62≥95% Pricing
AP10804TCO-PEG4-amido maleimide539.62≥95% Pricing
AP10827TCO-PEG6-maleimide556.65≥95% Pricing
AP10805TCO-PEG5-amido maleimide583.67≥95% Pricing
AP10828TCO-PEG7-maleimide600.71≥95% Pricing
AP10806TCO-PEG6-amido maleimide627.72≥95% Pricing
AP10807TCO-PEG7-amido maleimide671.78≥95% Pricing
AP10744TCO-PEG9-maleimide759.88≥95% Pricing
Tetrazine-PEG-Maleimide
AP10734Methyltetrazine-PEG3-Maleimide470.48≥95% Pricing
AP10721Methyltetrazine-PEG4-Maleimide514.53≥95% Pricing
AP13889Methyltetrazine-PEG12-Maleimide952.10≥95% Pricing

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