Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3-Carboxy-4-nitrophenyl disulfide
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: DTNB
Price: ￥Inquiry/25kg
Purity: 99.0%
Stocking Period: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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: 2026-07-01 11:14:42
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	Bis(3-cboxy-4-nitrophenyl) Disulfide DTNB Ellman's 3-Cboxy-4-nitrophe (3-Cboxy-4-nitrophenyl)disulphide, DTNB, Ellman's Ba-2767 Di(3-cboxy-4-nitrophenyl)persulfide 3-CBOXY-4-NITROPHENYL DISULFIDE Benzoic acid, 3,3-dithiobis6-nitro 2,2'-DINITRO-5,5'-DITHIODIBENZOIC ACID SAPONIN BIOCHEMICAL 5,5'-Dithiobis(2-nitrobenzoic Acid) [for Determination of SH oups] 3,3'-Disulfanediylbis(6-nitrobenzoic acid) 5,5-Dithiobis(2-nitrobenzoic acid) (DTNB) 3,3’-dithiobis(6-nitro-benzoicaci 5,5'-DITHIOBIS(2-NITROBENZOICACID) ADE 5,5-DITHIO-BIS(2-NITROBENZOIC ACID) 5,5'-Dithiobis(2-nitrobenzoic Acid) [for Determination of SH oups]> ELLMANS' 5,5'-Dithiobis(2-nitrobenzoic acid) Vetec(TM) ade 5-(3-Cboxy-4-nitrophenyl)disulfanyl-2-nitrobenzoic acid 3-Carboxy-4-nitrophenyl disulfide 6,6'-DINITRO-3,3'-DITHIODIBENZOIC ACID 5,5'-dithiobis-(2-nitrobenzoic acid) DTNB, 5,5'-Dithiobis-(2-nitrobenzoic acid) BIS(3-CBOXY-4-NITROPHENYL) DISULFIDE Dithiobis(2-nitrobenzoic acid) ade 3,3’-dithiobis[6-nitro-benzoicaci 3-Cboxy-4-nitrophenyl disulfide -3 5,5′-Dithiobis(2-nitrobenzoic acid),3-Cboxy-4-nitrophenyl disulfide, 6,6′-Dinitro-3,3′-dithiodibenzoic acid, Bis(3-cboxy-4-nitrophenyl) disulfide, DTNB, Ellman’s 5,5-Dithiobis(2-nitrobenzoic acid)product (DTNB) 5.5'-Dithio-Bis-(2-NitrobenzoicAcid)A.R 5,5′-Dithiobis(2-nitrobenzoic acid) ISO 9001：2015 REACH Ellman Reagent Bis(3-cboxy-4-nitrophenyl) Disulphide 5,5'-Dithiobis(2-nitrobenzoic acid) dithionitrobenzoicacid 5,5-Dithio-bis-(2-nitrobenzoic Acid) - - Calbiochem 5,5-DITHIOBIS(2-NITROBENZOIC ACID) extrapure ellmann's 5,5′-Dithiobis(2-nitrobenzoic acid) 5-[(3-CBOXY-4-NITROPHENYL)DITHIO]-2-NITROBENZOICACID(5,5-DITHIOBIS(2-NITROBENZOICACID)) EINECS 200-714-4 5,5'-DITHIO-BIS(2-NITROBENZOIC ACID) (3, 3'-6) 3,3’-dithiobis(6-nitrobenzoicacid) 5-Dithiobis(2-nitrobenzoic acid) Dithiobis(2-nitrobenzoic acid) 5,5-Dithiobis(2-nitrobenzoic acid) Bis(3-cboxy-4-nitrophenyl) disulphide~3-Cboxy-4-nitrophenyl disulphide~Ellmans 5,5'-Dithiobis(2-nitrobenzoic acid) ReagentPlus(R) UNII:9BZQ3U62JX 5,5 'twothiobis(2-Nitrobenzoic Acid 5-[(3-CBOXY-4-NITROPHENYL)DITHIO]-2-NITROBENZOIC ACID Ellmsn'sreagent Di(3-cboxy-4-nitrophenyl) persulfide 5,5’-dithiobis(2-nitrobenzoic Ellmanns 5,5'-disulfanediylbis(2-nitrobenzoic acid) DTNB Ellman's 2,2’-dinitro-5,5’-dithiodibenzoesaeure ELLMAN'S 5,5&priMe 3-Cboxy-4-nitrophenyl disulfide, 6,6μ-Dinitro-3,3μ-dithiodibenzoic acid, Bis(3-cboxy-4-nitrophenyl) disulfide, DTNB, Ellmans MFCD00007140 5,5'-DITHIOBIS(2-NITROBENZOIC ACID) 5,5'-Dithobis(2-Nitrobenzoic Acid) ithionitrobenzoicaci

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.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DG9650000

CHEMICAL NAME :: Benzoic acid, 3,3'-dithiobis(6-nitro-

CAS REGISTRY NUMBER :: 69-78-3

LAST UPDATED :: 199709

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C14-H8-N2-O8-S2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2080 mg/kg

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

Precursor 0
DownStream 7
629-45-8 18430-02-9 30211-77-9 15139-21-6
71899-86-0 822-27-5 5586-15-2

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%

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