Cell biology 

MTSEA biotin selectively labels thiols under mild conditions. It’s available in 3 variations with different linker lengths, all of which allow selective labeling of cell surface thiols. Longer linkers should facilitate interaction between biotin and streptavidin.

MTSEA biotin

• 2-((Biotinoyl)amino)ethyl methanethiosulfonate
• White solid soluble in DMF or DMSO
• Store desiccated at -20°C
• C₁₃H₂₃N₃O₄S₃
• MW: 381.52

MTSEA biotin-X

• MTSEA Biotincap; 2-((6-((biotinoyl)amino)hexanoyl)amino)ethylmethanethiosulfonate
• White solid soluble in DMF or DMSO
• Store desiccated at -20°C
• C₁₉H₃₄N₄O₅S₃
• MW: 494.68

MTSEA biotin-XX

• MTSEA Biotincapcap; 2-((6-((6-((biotinoyl)amino)hexanoyl)amino)hexanoyl)amino)ethylmethanethiosulfonate
• White solid soluble in DMF or DMSO
• Store desiccated at -20°C
• C₂₅H₄₅N₅O₆S₃
• MW: 607.7