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D218200 Sigma-Aldrich

5,5′-Dithiobis(2-nitrobenzoic acid)

ReagentPlus®, 99%

Synonym: 3-Carboxy-4-nitrophenyl disulfide, 6,6′-Dinitro-3,3′-dithiodibenzoic acid, Bis(3-carboxy-4-nitrophenyl) disulfide, DTNB, Ellman’s Reagent

  • CAS Number 69-78-3

  • Linear Formula [-SC6H3(NO2)CO2H]2

  • Molecular Weight 396.35

  •  Beilstein/REAXYS Number 1896821

  •  EC Number 200-714-4

  •  MDL number MFCD00007140

  •  PubChem Substance ID 24893651

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Properties

Related Categories Building Blocks, C13 to C42+, Carbonyl Compounds, Carboxylic Acids, Chemical Synthesis,
Quality Level   200
product line   ReagentPlus®
assay   99%
mp   240-245 °C (dec.) (lit.)
SMILES string   OC(=O)c1cc(SSc2ccc(c(c2)C(O)=O)[N+]([O-])=O)ccc1[N+]([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

Application

5,5′-Dithiobis(2-nitrobenzoic acid) is a water soluble reagent mainly used for the derivatization of sulfhydryl groups.

Packaging

1, 5 g in glass bottle

10 g in poly bottle

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
RTECS 
DG9650000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

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Protocols & Articles
Peer-Reviewed Papers
15

References

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