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322123

5,5′-Dithio-bis-(2-nitrobenzoic Acid)

Name: 5,5′-Dithio-<i>bis</i>-(2-nitrobenzoic Acid)
Brand: MM

Sulfhydryl reagent used to characterize reactive SH groups.

Synonym(s):

5,5′-Dithio-bis-(2-nitrobenzoic Acid), DTNB, Ellman’s Reagent

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About This Item

Empirical Formula (Hill Notation):

C₁₄H₈N₂O₈S₂

CAS Number:

69-78-3

Molecular Weight:

396.35

UNSPSC Code:

12352200

NACRES:

NA.21

MDL number:

MFCD00007140

Assay:

≥98% (titration)

Form:

solid

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Properties

description

RTECS - DG9650000

Quality Level

100

assay

≥98% (titration)

form

solid

manufacturer/tradename

Calbiochem^®

storage condition

OK to freeze, desiccated, protect from light

color

yellow

solubility

ethanol: 8 mg/mL

shipped in

ambient

storage temp.

2-8°C

SMILES string

S(Sc2cc(c(cc2)[N+](=O)[O-])C(=O)O)c1cc(c(cc1)[N+](=O)[O-])C(=O)O

InChI

1S/C14H8N2O8S2/c17-13(18)9-5-7(1-3-11(9)15(21)22)25-26-8-2-4-12(16(23)24)10(6-8)14(19)20/h1-6H,(H,17,18)(H,19,20)

InChI key

KIUMMUBSPKGMOY-UHFFFAOYSA-N

Description

General description

Sulfhydryl reagent used to characterize reacting SH groups. Useful in photometric determination of thiols.

Biochem/physiol Actions

Cell permeable: no

Primary Target
Useful in photometric determination of thiols

Product does not compete with ATP.

Reversible: no

Packaging

Packaged under inert gas

Preparation Note

May require gentle heating for complete solubilization.

Other Notes

Ellman, G.L., et al. 1961. Biochem. Pharmacol.7, 88.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Standard Handling (A)

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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c