4-Aminobiphenyl

4-Aminobiphenyl
Names
Preferred IUPAC name
[1,1'-Biphenyl]-4-amine
Other names
4-Aminobiphenyl
4-ABP
4-Aminodiphenyl[1]
p-Aminobiphenyl[1]
p-Aminodiphenyl[1]
4-Phenylaniline[1]
Identifiers
92-67-1 YesY
3D model (Jmol) Interactive image
ChEBI CHEBI:1784 YesY
ChEMBL ChEMBL44201 YesY
ChemSpider 6835 YesY
ECHA InfoCard 100.001.980
KEGG C10998 YesY
Properties
C12H11N
Molar mass 169.22
Appearance white to purple crystals
Odor floral[1]
Density 1,16 g·cm−3[2]
Melting point 52 to 54 °C (126 to 129 °F; 325 to 327 K)[2]
Boiling point 302 °C (576 °F; 575 K)[2]
practically insoluble in water,[2] soluble in alcohol, ether and chloroform
Vapor pressure 20 mbar (191 °C)[2]
Hazards
Main hazards potential occupational carcinogen[1]
NFPA 704
Flammability code 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g., canola oil Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
1
2
0
Flash point 147 °C (297 °F; 420 K)
450 °C (842 °F; 723 K)
US health exposure limits (NIOSH):
REL (Recommended)
 carcinogen[1]
IDLH (Immediate danger)
 N.D.[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

4-Aminobiphenyl is an amine derivative of biphenyl. It is used to manufacture azo dyes. It is a known human carcinogen[3] and so it has been largely replaced by less toxic compounds. It is similar to benzidine.

Occupational exposure limits

Country Standard[4]
Argentina Confirmed human carcinogen
Australia Prohibited, Carcinogen
Belgium Skin
Bulgaria Confirmed human carcinogen
Colombia Confirmed human carcinogen
Finland TWA 10 mg/m3short term 20 mg/m3

Skin, Carcinogen

France VME 0.001 ppm (0.007 mg/m3)

Continuous1 Carcinogen

Hungary Ceiling concentration 10 mg/m3Carcinogen
Jordan Confirmed human carcinogen
New Zealand Carcinogen, Skin
Norway TWA 0.1 mg/m3
Singapore Confirmed human carcinogen
South Korea Carcinogen, Skin
Sweden Group A Carcinogen
Vietnam Confirmed human carcinogen

References

  1. 1 2 3 4 5 6 7 8 "NIOSH Pocket Guide to Chemical Hazards #0025". National Institute for Occupational Safety and Health (NIOSH).
  2. 1 2 3 4 5 Record of CAS RN 92-67-1 in the GESTIS Substance Database of the IFA, accessed on 8. April 2009
  3. ↑ National Toxicology Program
  4. ↑ "4-Aminodiphenyl". RTECS. National Institute for Occupational Safety and Health (NIOSH).


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