ChemicalBook > CAS DataBase List > Benzidine dihydrochloride

Benzidine dihydrochloride

Product Name: Benzidine dihydrochloride
CAS No.: 531-85-1
Chemical Name: Benzidine dihydrochloride
Synonyms: benzidine2hcl;Benzidine HCL;Benzidine dihydrochl;Piroctone Impurity 1;BENZIDINE HYDROCHLORIDE;dihidroclorurodebenzidina;BENZIDINE DIHYDROCHLORIDE;Benzidine dihydroenloride;Phenylbutazone Impurity A;Phenylbutazone Impurity E
CBNumber: CB5133044
Molecular Formula: C12H13ClN2
Formula Weight: 220.7
MOL File: 531-85-1.mol

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Benzidine dihydrochloride Property

Melting point:: ≥300 °C
form: powder
color: Leaflets
Water Solubility: 0.1-0.5 g/100 mL at 23.5 ºC
BRN: 3914846
InChI: InChI=1S/C12H12N2.ClH/c13-11-5-1-9(2-6-11)10-3-7-12(14)8-4-10;/h1-8H,13-14H2;1H
InChIKey: FYRTZXXTIDKEJD-UHFFFAOYSA-N
SMILES: NC1C=CC(C2C=CC(N)=CC=2)=CC=1.Cl
CAS DataBase Reference: 531-85-1(CAS DataBase Reference)
EPA Substance Registry System: Benzidine dihydrochloride (531-85-1)

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Safety

Hazard Codes: T,N,Xn
Risk Statements: 45-22-50/53-36/37/38-20/21/22
Safety Statements: 53-45-60-61-36-26
RIDADR: UN 2811 6.1/PG 2
WGK Germany: 3
RTECS: DD0600000
Toxicity: mmo-sat 100 nmol/plate MUREAV 136,33,84

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H350May cause cancer

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P201Obtain special instructions before use.

P202Do not handle until all safety precautions have been read and understood.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P308+P313IF exposed or concerned: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: B3383
Product name: Benzidine dihydrochloride
Purity: ≥99% (titration)
Packaging: 1g
Price: $71
Updated: 2025/07/31

Sigma-Aldrich

Product number: 12125
Product name: Benzidine dihydrochloride
Purity: for experimental carcinogenesis, ≥99.0%
Packaging: 5g
Price: $219
Updated: 2023/06/20

Sigma-Aldrich

Product number: B3383
Product name: Benzidine dihydrochloride
Purity: ≥99% (titration)
Packaging: 5g
Price: $267
Updated: 2025/07/31

Sigma-Aldrich

Product number: B3383
Product name: Benzidine dihydrochloride
Purity: ≥99% (titration)
Packaging: 10g
Price: $491
Updated: 2025/07/31

Biosynth Carbosynth

Product number: FB147203
Product name: Benzidine dihydrochloride
Packaging: 25g
Price: $566
Updated: 2021/12/16

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Benzidine dihydrochloride Chemical Properties,Usage,Production

Uses

The dihydrochlorie salt of Benzidine (B121000) a common used in dyes and environmental testing.

General Description

White crystalline powder.

Air & Water Reactions

Benzidine dihydrochloride may be sensitive to prolonged exposure to light and air. Slightly soluble in water.

Reactivity Profile

Acidic organic/inorganic salts, such as Benzidine dihydrochloride, are generally soluble in water. The resulting solutions contain moderate to high concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.

Fire Hazard

Flash point data for Benzidine dihydrochloride are not available; however, Benzidine dihydrochloride is probably combustible.

Biological Activity

Tumor initiator in mammary glands of experimental animal.

Safety Profile

Suspected carcinogen with experimental carcinogenic and tumorigenic data. Human mutation data reported. When heated to decomposition it emits very toxic fumes of HCl and NOx.

Purification Methods

Benzidine dihydrochloride [531-85-1] M 257.2, m >250o(dec). Crystallise the salt by dissolving in hot H2O, and adding conc HCl to the slightly cooled solution. CARCINOGENIC.[Beilstein 13 IV 365.]

Benzidine dihydrochloride Preparation Products And Raw materials

Raw materials

Preparation Products

Benzidine Phenformin

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View Lastest Price from Benzidine dihydrochloride manufacturers

Career Henan Chemical Co

Product: Benzidine dihydrochloride 531-85-1
Price: US $1.00/kg
Min. Order: 1kg
Purity: 95%-99%
Supply Ability: 100kg
Release date: 2018-12-24

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General Use

Intermediates of Dyes and Pigments