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HomeFluorescent DyeMB DyesMB 543 Dye MB 543 Maleimide
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MB 543 NHS ester $129.00 – $2,495.00
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MB 543 Alkyne $139.00 – $2,795.00
MB 543 Maleimide

Catalog #: AP12539
Name: MB 543 Maleimide
Molecular Weight: 942.04
Solubility: Water, DMSO, DMF
Abs/Em Maxima: 543/566 nm
Extinction coefficient: 105,000 cm-1M-1
Spectrally similar dyes: Alexa Fluor® 546, CF® 543, TAMRA
Purity: ≥95%
Availability: In Stock

MB 543 Maleimide

$129.00 – $2,495.00

UnitPriceQuantity
1mg$129
5mg$395
25mg$1295
100mg$2495

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SKU: AP12539 Category: MB 543 Dye
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  • Description
  • Abs/Em Spectra
  • Shipping & Delivery
Description

MB™ 543 is a very hydrophilic, water-soluble orange fluorescent dye. Structurally related to Alexa Fluor® 546 dye, MB™ 543 dye contains an additional, negatively charged sulfo group (SO3H) to improve water solubility and minimize self-quenching. Characteristic features of MB™ 543 are strong absorption, high fluorescence quantum yield, high photostability, and pH insensitivity from pH 3 to pH 10. MB™ 543 is a highly suitable dye for single-molecule detection applications and high-resolution microscopy such as PALM, dSTORM, STED etc.
Maleimide is the most popular sulfhydryl-reactive reactive group for conjugating the dye to a thiol group on a protein, oligonucleotide thiophosphate, or low molecular weight ligand. The maleimide group specifically and efficiently reacts with reduced thiols (sulfhydryl groups, –SH) at pH 6.5 to 7.5 to form stable thioether bond. The resulting conjugates exhibit brighter fluorescence and greater photostability than the conjugates of many other spectrally similar fluorophores.

AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.

Abs/Em Spectra

MB543

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Ships within: 24 hours
Storage condition: -20 ° C
Shipping: Ambient Temperature

Related products

Cat# Name Structure M.W. Purity Pricing
AP12538MB 543 NHS ester
Quick viewMB 543 NHS ester
916.99≥95% Pricing
M.W: 916.99; Purity: ≥95%
MB 543 NHS ester
Unit Price(USD)Quantity & Buy
1mg$129
5mg$395
25mg$1295
100mg$2495
Bulk inquiry

Inquire about bulk pricing for large orders!

AP12541MB 543 Picolyl Azide
Quick viewMB 543 Picolyl Azide
1022.13≥95% Pricing
M.W: 1022.13; Purity: ≥95%
MB 543 Picolyl Azide
Unit Price(USD)Quantity & Buy
1mg$149
5mg$445
25mg$1495
Bulk inquiry

Inquire about bulk pricing for large orders!

AP12540MB 543 Azide
Quick viewMB 543 Azide
902.02≥95% Pricing
M.W: 902.02; Purity: ≥95%
MB 543 Azide
Unit Price(USD)Quantity & Buy
1mg$139
5mg$395
25mg$1295
100mg$2495
Bulk inquiry

Inquire about bulk pricing for large orders!

AP12543MB 543 DBCO
Quick viewMB 543 DBCO
1078.24≥95% Pricing
M.W: 1078.24; Purity: ≥95%
MB 543 DBCO
Unit Price(USD)Quantity & Buy
1mg$149
5mg$395
25mg$1295
Bulk inquiry

Inquire about bulk pricing for large orders!

AP12542MB 543 Alkyne
Quick viewMB 543 Alkyne
856.98≥95% Pricing
M.W: 856.98; Purity: ≥95%
MB 543 Alkyne
Unit Price(USD)Quantity & Buy
1mg$139
5mg$395
25mg$1395
100mg$2795
Bulk inquiry

Inquire about bulk pricing for large orders!

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