69-78-3

69-78-3 structure

Name: DTNB
Chemical Name: dithionitrobenzoic acid
CAS Number: 69-78-3
Molecular Formula: C₁₄H₈N₂O₈S₂
Molecular Weight: 396.352
Catalog: Organic raw materials Hydrocarbon compounds and their derivatives Hydrocarbon nitrite
Create Date: 2018-12-27 14:47:31
Modify Date: 2025-08-20 18:41:37
DTNB(Ellman’s Reag) is a chemical used to quantify the number or concentration of thiol groups in a sample; can be used for measuring low-molecular mass thiols such as glutathione in both pure solutions and biological samples, such as blood.

Name	dithionitrobenzoic acid
Synonyms	3-Carboxy-4-nitrophenyl disulfide EINECS 200-714-4 3,3'-Disulfanediylbis(6-nitrobenzoic acid) Benzoic acid, 3,3'-dithiobis[6-nitro- Ellman Reagent MFCD00007140 5,5'-dithiobis-(2-nitrobenzoic acid) 5,5'-DITHIOBIS(2-NITROBENZOIC ACID) 5,5'-Dithobis(2-Nitrobenzoic Acid) 5,5-Dithiobis(2-nitrobenzoic acid) 5,5′-Dithiobis(2-nitrobenzoic acid) UNII:9BZQ3U62JX DTNB

Description	DTNB(Ellman’s Reag) is a chemical used to quantify the number or concentration of thiol groups in a sample; can be used for measuring low-molecular mass thiols such as glutathione in both pure solutions and biological samples, such as blood.
Related Catalog	Signaling Pathways >> Others >> Others Biochemical Assay Reagents Research Areas >> Others

Density	1.8±0.1 g/cm3
Boiling Point	671.9±55.0 °C at 760 mmHg
Melting Point	240-245 °C (dec.)(lit.)
Molecular Formula	C₁₄H₈N₂O₈S₂
Molecular Weight	396.352
Flash Point	360.1±31.5 °C
Exact Mass	395.972198
PSA	216.84000
LogP	3.97
Vapour Pressure	0.0±2.2 mmHg at 25°C
Index of Refraction	1.769
Storage condition	Store at RT.
Stability	Stable. Incompatible with strong bases, strong oxidizing agents.

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 21,284,1971 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X7018 No. of Facilities: 23 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 197 (estimated) No. of Female Employees: 145 (estimated)

Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi:Irritant
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	DG9650000
HS Code	29309070

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%