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CAS No.: 91-95-2
Name: 3,3'-Diaminobenzidine
Article Data: 17
Molecular Structure:
Molecular Structure of 91-95-2 (3,3'-Diaminobenzidine)
Formula: C12H14N4
Molecular Weight: 214.27
Synonyms: 3,3',4,4'-Biphenyltetramine(6CI,8CI);3,3',4,4'-Tetraaminobiphenyl;3,3',4,4'-Tetraaminodiphenyl;Biphenyl-3,3',4,4'-tetraamine;NSC 76152;[1,1'-Biphenyl]-3,3',4,4'-tetramine;
EINECS: 202-110-6
Density: 1.307 g/cm3
Melting Point: 175-177 °C(lit.)
Boiling Point: 481.7 °C at 760 mmHg
Flash Point: 282.7oC
Solubility: 0.55 g/L (20 °C) in water
Appearance: solid
Hazard Symbols: HarmfulXn
Risk Codes: 36/37/38-40-22-20/21/22
Safety: 26-36/37-45-36/37/39-22
PSA: 104.08000
LogP: 4.00720
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Chemistry

IUPAC:4-(3,4-diaminophenyl)benzene-1,2-diamine
CAS:91-95-2
The Molecular formula of 3,3′,4,4′-BIPHENYLTETRAMINE(91-95-2):C12H14N4
The Molecular Weight of 3,3′,4,4′-BIPHENYLTETRAMINE(91-95-2):214.27
Synonyms:TIMTEC-BB SBB008427;[1,1'-BIPHENYL]-3,3',4,4'-TETRAMINE;3,3'-DIAMINOBENZIDINE;3,3',4,4'-TETRAAMINOBIPHENYL;3,3',4,4'-TETRAAMINODIPHENYL;3,3',4,4'-BIPHENYLTETRAMIN;3,3'-Diaminobenzidine;3,4,3',4'-TETRAAMINOBIPHENYL
EINECS:202-110-6
Density:1.307 g/cm3
Melting Point:175-177oC(lit.)
storage temp.:2-8oC
Boiling Point:481.7oC at 760 mmHg
Flash Point:282.7oC
Vapour Pressure:1.95E-09 mmHg at 25oC
Index of Refraction:1.765 
Product Categories:Biphenyl & Diphenyl ether;Biphenyls (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research;Biochemistry;Enzyme;Substrates
Mol File:91-95-2.mol

Uses

3,3′,4,4′-BIPHENYLTETRAMINE(91-95-2) is used as a pharmaceutical intermediate.It is commonly used in immunohistochemical staining.

Toxicity Data With Reference

1.   

mma-sat 100 µg/plate

   BJCAAI    British Journal of Cancer. 37 (1978),873.
2.   

dnd-esc 20 µmol/L

   MUREAV    Mutation Research. 89 (1981),95.
3.   

mmo-smc 140 µmol/L

   MGGEAE    Molecular and General Genetics. 174 (1979),39.
4.   

dns-rat:lvr 500 µmol/L

   ENMUDM    Environmental Mutagenesis. 3 (1981),11.
5.   

orl-rat LDLo:3000 mg/kg

   CNREA8    Cancer Research. 26 (1966),619.
6.   

orl-mus LD50:1834 mg/kg

   GISAAA    Gigiena i Sanitariya. 46 (1)(1981),94.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Suspected carcinogen with experimental tumorigenic data. Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. See also AROMATIC AMINES.

Safty informations about 3,3′,4,4′-BIPHENYLTETRAMINE(91-95-2):
Hazard Codes:Xn
Risk Statements:36/37/38-40-22-20/21/22
 36/37/38(Irritating to eyes, respiratory system and skin)
 40(Limited evidence of a carcinogenic effect)
 22(Harmful if swallowed)
 20/21/22(Harmful by inhalation, in contact with skin and if swallowed)
Safety Statements:26-36/37-45-36/37/39-22
 26(In case of contact with eyes, rinse immediately with plenty of water and seek medical advice)
 36/37(Wear suitable protective clothing and gloves)
 45(In case of accident or if you feel unwell, seek medical advice immediately (show label where possible))
 36/37/39(Wear suitable protective clothing, gloves and eye/face protection)
 22(Do not breathe dust)
WGK Germany:1
RTECS:DV8750000
F:8-10-23

Standards and Recommendations

DFG MAK: Confirmed Animal Carcinogen with Unknown Relevance to Humans