3,3'-Dichlorobenzidine

Modify Date: 2025-08-20 14:21:16

3,3'-Dichlorobenzidine structure	Common Name	3,3'-Dichlorobenzidine
	CAS Number	91-94-1	Molecular Weight	253.127
	Density	1.4±0.1 g/cm3	Boiling Point	385.0±37.0 °C at 760 mmHg
	Molecular Formula	C₁₂H₁₀Cl₂N₂	Melting Point	133ºC
	MSDS	Chinese USA	Flash Point	186.6±26.5 °C
	Symbol	GHS02, GHS06, GHS08, GHS09	Signal Word	Danger

Name	3,3'-Dichlorobenzidine
Synonym	More Synonyms

Density	1.4±0.1 g/cm3
Boiling Point	385.0±37.0 °C at 760 mmHg
Melting Point	133ºC
Molecular Formula	C₁₂H₁₀Cl₂N₂
Molecular Weight	253.127
Flash Point	186.6±26.5 °C
Exact Mass	252.022110
PSA	52.04000
LogP	3.45
Vapour Pressure	0.0±0.9 mmHg at 25°C
Index of Refraction	1.679
InChIKey	HUWXDEQWWKGHRV-UHFFFAOYSA-N
SMILES	Nc1ccc(-c2ccc(N)c(Cl)c2)cc1Cl
Stability	Stable. Incompatible with strong oxidizing agents.

3,3'-Dichlorobenzidine MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DD0525000

CHEMICAL NAME :: Benzidine, 3,3'-dichloro-

CAS REGISTRY NUMBER :: 91-94-1

BEILSTEIN REFERENCE NO. :: 2108022

LAST UPDATED :: 199712

DATA ITEMS CITED :: 53

MOLECULAR FORMULA :: C12-H10-Cl2-N2

MOLECULAR WEIGHT :: 253.14

WISWESSER LINE NOTATION :: ZR BG DR DZ CG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 17 gm/kg/50W-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Blood - tumors Skin and Appendages - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3600 mg/kg/61W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Skin and Appendages - breast

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 5100 mg/kg/43W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 320 mg/kg female 15-21 day(s) after conception

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Reproductive - Tumorigenic effects - transplacental tumorigenesis Lungs, Thorax, or Respiration - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 5200 mg/kg/47W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors Tumorigenic - tumors at site of application

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 17 gm/kg/7Y-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors Kidney, Ureter, Bladder - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - hamster

DOSE/DURATION :: 176 gm/kg/70W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors Kidney, Ureter, Bladder - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 20 gm/kg/52W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Gastrointestinal - tumors Skin and Appendages - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 21 gm/kg/50W-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Blood - tumors Skin and Appendages - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 7 gm/kg/43W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Tumorigenic - tumors at site of application

TYPE OF TEST :: Micronucleus test

TYPE OF TEST :: Mutation test systems - not otherwise specified

TYPE OF TEST :: Cytogenetic analysis

MUTATION DATA

TYPE OF TEST :: DNA adduct

TEST SYSTEM :: Mammal - species unspecified Lymphocyte

REFERENCE :: CBINA8 Chemico-Biological Interactions. (Elsevier Scientific Pub. Ireland Ltd., POB 85, Limerick, Ireland) V.1- 1969- Volume(issue)/page/year: 38,369,1982 *** REVIEWS *** ACGIH TLV-Animal carcinogen, NO TWA (skin) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 4,49,1974 IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 29,239,1982 IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 29,239,1982 IARC Cancer Review:Group 2B IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,193,1987 TOXICOLOGY REVIEW ADCSAJ Advances in Chemistry Series. (American Chemical Soc., Distribution Office Dept. 223, POB 57136, West End Stn., Washington, DC 20037) No.1- 1950- Volume(issue)/page/year: 13,271,1970 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD:skin-HUMAN CARCINOGEN, NO ASSIGNED TWA DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,77,1971 OSHA PEL (Gen Indu):see CFR 29,1910.1007 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):see CFR 29,1926.1107 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):see CFR 29,1915.1007 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA-cancer suspect agent CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1007,1987 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA;Skin;Carcinogen JAN 1993 OEL-FRANCE;Carcinogen JAN 1993 OEL-GERMANY;Skin;Carcinogen JAN 1993 OEL-SWEDEN;Carcinogen JAN 1993 OEL-SWITZERLAND:TWA 0.1 mg/m3;Skin;Carcinogen JAN 1993 OEL-SWITZERLAND;Carcinogen JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO 3,3'-DICHLOROBENZIDINE-air:CA use 29 CFR 1910.1007 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992

Symbol	GHS02, GHS06, GHS08, GHS09
Signal Word	Danger
Hazard Statements	H225-H301 + H311 + H331-H350-H370-H411
Precautionary Statements	P201-P210-P260-P273-P280-P301 + P310
Personal Protective Equipment	Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes	T,N,F
Risk Phrases	R45
Safety Phrases	S53-S45-S60-S61-S36/37-S16-S7
RIDADR	UN 3077 9/PG 3
WGK Germany	3
RTECS	DD0550000
Packaging Group	II
Hazard Class	6.1
HS Code	2921590032

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Detail

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Precursor 8
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DownStream 10
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HS Code	2921590032
Summary	HS:2921590032 3,3'-dichloro-[1,1'-biphenyl]-4,4'-diamine VAT:17.0% Tax rebate rate:9.0% Supervision conditions:x MFN tariff:6.5% General tariff:30.0%

Evidence that 4-aminobiphenyl, benzidine, and benzidine congeners produce genotoxicity through reactive oxygen species.

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4-Aminobyphenyl (4-Ab), benzidine (Bz), and Bz congeners were evaluated for their ability to induce genotoxicity through an oxidative mechanism. The mutagenicity of these compounds was tested in the p...

Photodechlorination of 3,3'-dichlorobenzidine in water.

Environ. Toxicol. Chem. 21(3) , 500-6, (2002)

Laboratory experiments have been conducted to elucidate the photochemical behavior of 3,3'-dichlorobenzidine (DCB) and its congeners in aquatic systems. Photodechlorination of DCB was observed in aque...

Determination of dichlorobenzidine-hemoglobin adducts by GC/MS-NCI.

Int. Arch. Occup. Environ. Health 69(4) , 240-6, (1997)

A method based on gas chromatography/mass spectrometry-negative ion chemical ionization detection (GC/MS-NCI) was developed for the determination of 3,3'-dichlorobenzidine (DCB)-hemoglobin adducts. Ad...

DCB

ortho,ortho'-Dichlorobenzidine

Dichlorobenzidine, 3,3'-

3,3'-Dichlorobenzidine

3,3'-Dichloro-4,4'-diamino(1,1-biphenyl)

3,3'-Dichloro-4,4'-biphenyldiamine

[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dichloro-

3,3'-Dichloro-(1,1'-biphenyl)-4,4'-diamine

4-13-00-00384 (Beilstein Handbook Reference)

3,3`-dichlorobenzidine

3,3-Dichloro-(1,1'-biphenyl)-4,4'-diamine

MFCD00043917

4-(4-amino-3-chlorophenyl)-2-chloroaniline

EINECS 202-109-0

3,3'-Dichlorobiphenyl-4,4'-diamine

o,o'-dichlorobenzidine

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China
Product Name: 3,3'-Dichlorobenzidine
Price: Check
Purity: 98.0%
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Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 3,3'-Dichlorobenzidine
Price: ￥1148.0/100mg
Purity: 98.0%
Delivery: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3,3'-Dichlorobenzidine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

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3,3'-Dichlorobenzidine

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