Chemical name: Hexahydro-2-oxo-1H-thieno[3,4-d]imidazole-4-pentanoic acid // Synonyms: Vitamin H

  • Product code:LS-1070
  • CAS No.:58-85-5
  • Formula:C10H16N2O3S
  • Molecular weight:244.31 g/mol

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5 g
25 g
100 g
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Essential vitamin important for amino acid and energy metabolism. Prosthetic group in four mammalian carboxylase families; facilitates the binding and transfer of carbon dioxide.

Often chemically linked to proteins for biochemical assays. Bound by streptavidin and avidin with dissociation constants in the Femtomolar range.


Stayton, P.S. et al., Streptavidin-biotin binding energetics. Biomol Eng. 1999;16(1-4):39-44.

Wilbur, D.S. et al., Development of new biotin/streptavidin reagents for pretargeting. Biomol Eng. 1999;16(1-4):113-8

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