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Carboxylic Acids & Salts

5,5'-Dithiobis-(2-nitrobenzoic acid), 99%

Extra PureAvailable on request

Order 5,5'-Dithiobis-(2-nitrobenzoic acid), 99% (CAS 69-78-3) online at Zemixal. Request a quote with price, lead time and documents.

Pack sizes
5,5'-Dithiobis-(2-nitrobenzoic acid), 99% chemical structure
CAS number69-78-3
FormulaC14H8N2O8S2
Molar mass396.4 g/mol
Physical formPowder
HS code29309090
Purity99%
InChIKeyKIUMMUBSPKGMOY-UHFFFAOYSA-N
IUPAC name5-[(3-carboxy-4-nitrophenyl)disulfanyl]-2-nitrobenzoic acid

About 5,5'-Dithiobis-(2-nitrobenzoic acid), 99%

Zemixal supplies 5,5'-Dithiobis-(2-nitrobenzoic acid), 99% within its pharma Intermediates & Building Blocks portfolio. Key data (Extra Pure): CAS 69-78-3, formula C14H8N2O8S2 and molar mass 396.4 g/mol. It is described as yellow powder.

Typical applications

  • Analytical determinations
  • Protein & peptide research

Handling and storage

Literature values: melting point 240-245 °C and density 1.79 g/cm3. It carries the GHS signal word Warning (H315, H319 and H335), so wear gloves and eye protection and work with good ventilation.

Available as 1 g, 5 g, 10 g, 25 g and 100 g. Larger or split packs can be arranged. Each lot travels with a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Analytical determinations
  • Protein & peptide research

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Extra Pure Grade

Specifications and identifiers

Specifications of 5,5'-Dithiobis-(2-nitrobenzoic acid), 99%
Product name5,5'-Dithiobis-(2-nitrobenzoic acid), 99%
Catalogue numberZX-007428
CAS number69-78-3
IUPAC name5-[(3-carboxy-4-nitrophenyl)disulfanyl]-2-nitrobenzoic acid
Molecular formulaC14H8N2O8S2
Molar mass396.4 g/mol
Exact mass395.9722
GradeExtra Pure
Purity / assay99%
Physical formPowder
AppearanceYellow powder
Melting point240-245 °C
Density1.79 g/cm3
XLogP32.7
H-bond donors / acceptors2 / 10
Topological polar surface area217 Ų
HS code29309090
InChIKeyKIUMMUBSPKGMOY-UHFFFAOYSA-N
SMILESC1=CC(=C(C=C1SSC2=CC(=C(C=C2)[N+](=O)[O-])C(=O)O)C(=O)O)[N+](=O)[O-]
PubChem CID6254
SynonymsDTNB, 3-Carboxy-4-nitrophenyl disulfide, 6,6'-Dinitro-3,3'-dithiodibenzoic acid, Bis(3-carboxy-4-nitrophenyl) disulfide, Ellman's Reagent, 5,5'-Dithiobis(2-nitrobenzoic acid), Dithionitrobenzoic acid, Benzoic acid, 3,3'-dithiobis[6-nitro-, Dithiobisnitrobenzoic acid, 3,3'-Dithiobis(6-nitrobenzoic acid), Ellmans reagent, Ellman Reagent

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 5,5'-Dithiobis-(2-nitrobenzoic acid), 99%
1 gQuoted on request
5 gQuoted on request
10 gQuoted on request
25 gQuoted on request
100 gQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 5,5'-Dithiobis-(2-nitrobenzoic acid), 99%

Which CAS number identifies 5,5'-Dithiobis-(2-nitrobenzoic acid), 99%?
5,5'-Dithiobis-(2-nitrobenzoic acid), 99% is registered under CAS 69-78-3. You may also see it listed as DTNB, 3-Carboxy-4-nitrophenyl disulfide, 6,6'-Dinitro-3,3'-dithiodibenzoic acid. Our catalogue number for this item is ZX-007428.
What are the formula and molar mass of 5,5'-Dithiobis-(2-nitrobenzoic acid), 99%?
For 5,5'-Dithiobis-(2-nitrobenzoic acid), 99%, its formula is C14H8N2O8S2 and its molar mass is 396.4 g/mol. The systematic (IUPAC) name is 5-[(3-carboxy-4-nitrophenyl)disulfanyl]-2-nitrobenzoic acid. InChIKey KIUMMUBSPKGMOY-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for 5,5'-Dithiobis-(2-nitrobenzoic acid), 99%?
This listing is Extra Pure grade with 99% purity. Standard packs are 1 g, 5 g, 10 g, 25 g, 100 g. Larger quantities and custom packing can be quoted on request.
Which documents come with 5,5'-Dithiobis-(2-nitrobenzoic acid), 99%?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 5,5'-Dithiobis-(2-nitrobenzoic acid), 99% to my country?
Yes. Because 5,5'-Dithiobis-(2-nitrobenzoic acid), 99% is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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