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B3383

Sigma-Aldrich

Benzidine dihydrochloride

≥99% (titration)

Synonym(s):

4,4′-Diaminobiphenyl dihydrochloride

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About This Item

Empirical Formula (Hill Notation):
C12H12N2 · 2HCl
CAS Number:
531-85-1
Molecular Weight:
257.16
Beilstein:
3914846
EC Number:
208-519-6
MDL number:
MFCD00040389
UNSPSC Code:
12352116
PubChem Substance ID:
24891713
NACRES:
NA.25

Assay

≥99% (titration)

form

powder

SMILES string

Cl[H].Cl[H].Nc1ccc(cc1)-c2ccc(N)cc2

InChI

1S/C12H12N2.2ClH/c13-11-5-1-9(2-6-11)10-3-7-12(14)8-4-10;;/h1-8H,13-14H2;2*1H

InChI key

RUAXWVDEYJEWRY-UHFFFAOYSA-N

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Application

Benzidine (4,4′-Diaminobiphenyl) is an environmental genotoxin that posses increased risks of cancer to exposed people. Benzidine may be used as a reference material in procedures that analyze for benzidine. Benzidine can be used in studies on its mechanisms of genotoxicity.

Biochem/physiol Actions

Tumor initiator in mammary glands of experimental animal.

Warning

Cancer suspect agent.

Signal Word

Danger

Hazard Statements

H302,H350,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
WE314499/1
E314499/1V
078K1153
083K2521
026K2509

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K C Morton et al.
Carcinogenesis, 2(8), 747-752 (1981-01-01)
To evaluate the role of metabolism in benzidine (BZ) carcinogenesis, BZ and 2 or its metabolites, N,N'-diacetylbenzidine and N-hydroxy-N,N'-diacetylbenzidine (NOHDABZ), were given by i.p. injection to female CD rats twice weekly for 4 weeks beginning at 30 days of age.
Yan Cao et al.
Stem cells and development, 24(22), 2660-2673 (2015-07-17)
Autophagy is required for hematopoietic stem cell multilineage differentiation, but the underlying mechanism is unknown. Using a conditional mouse model and human leukemia cells, we uncovered a mechanistic link between autophagy and hematopoietic stem cell differentiation. Loss of autophagy in
Jung Woo Lee et al.
Chemical communications (Cambridge, England), 48(3), 422-424 (2011-11-15)
We report a facile route to synthesize size tunable Fe(3)O(4) nanoparticles (NPs)-carbon nitride nanotube (CNNT) hybrids. These hybrids showing the water-soluble property are proven to exhibit ultra high peroxidase mimetic activity compared to those of pure NPs, where a colorless
K Trivedi et al.
Nanotechnology, 20(40), 405204-405204 (2009-09-10)
This study reports fabrication and characterization of nanoscale organic light emitting diodes with reduced charge spreading. Nanoimprint lithography is used to make SU-8 nanochannels with approximately 90 degrees sidewalls into which N'-bis(naphthalen-1-yl)-N,N'-bis(phenyl)benzidine (NPB) and tris-(8-hydroxyquinoline) aluminum (Alq3) are thermally evaporated
Xiaoyu Chen et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(37), 11828-11836 (2012-07-26)
Salts that contain radical cations of benzidine (BZ), 3,3',5,5'-tetramethylbenzidine (TMB), 2,2',6,6'-tetraisopropylbenzidine (TPB), and 4,4'-terphenyldiamine (DATP) have been isolated with weakly coordinating anions [Al(OR(F))(4)](-) (OR(F) = OC(CF(3))(3)) or SbF(6)(-). They were prepared by reaction of the respective silver(I) salts with stoichiometric
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