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37574-47-3

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Basic Information
CAS No.: 37574-47-3
Name: benzo(a)pyrene 4,5-epoxide
Article Data: 5
Molecular Structure:
Molecular Structure of 37574-47-3 (benzo(a)pyrene 4,5-epoxide)
Formula: C20H12 O
Molecular Weight: 268.315
Synonyms: (?à)-Benzo[a]pyrene 4,5-epoxide; (?à)-Benzo[a]pyrene 4,5-oxide;4,5-Dihydrobenzo[a]pyrene 4,5-oxide; Benzo[a]pyrene 4,5-epoxide; Benzo[a]pyrene4,5-oxide; Benzopyrene 4,5-epoxide
Density: 1.39g/cm3
Boiling Point: 518.9°Cat760mmHg
Flash Point: 249°C
Safety: Questionable carcinogen with experimental tumorigenic and neoplastigenic data. Mutation data reported. When heated to decomposition it emits acrid and irritating fumes.
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Chemistry

Molecular Structure of Benzo(a)pyrene-4,5-oxide (CAS NO. 37574-47-3):

IUPAC Name: benzo[b]pyrene-6,12-dione 
Empirical Formula: C20H12O 
Molecular Weight: 268.3087 
Index of Refraction: 1.861 
Surface Tension: 70.1 dyne/cm 
Density: 1.39 g/cm3 
Flash Point: 249 °C 
Enthalpy of Vaporization: 76.16 kJ/mol 
Boiling Point: 518.9 °C at 760 mmHg 
Vapour Pressure: 2.37E-10 mmHg at 25°C 
Classification Code: Tumor data;Mutation data;Noxae;Carcinogens

Toxicity Data With Reference

1.    

mmo-sat 250 ng/plate

     ENMUDM    Environmental Mutagenesis. 7 (1985),839.
2.    

mma-sat 1 µg/plate

     ENMUDM    Environmental Mutagenesis. 7 (1985),839.
3.    

mmo-esc 1 µg/plate

     TCMUD8    Teratogenesis, Carcinogenesis, and Mutagenesis. 5 (1985),339.
4.    

dnr-bcs 1- µg/plate

     CNREA8    Cancer Research. 45 (1985),2600.
5.    

dnd-mam:lym 800 nmol

     CRNGDP    Carcinogenesis. 3 (1982),267.

Consensus Reports

EPA Genetic Toxicology Program.

Safety Profile

Questionable carcinogen with experimental tumorigenic and neoplastigenic data. Mutation data reported. When heated to decomposition it emits acrid and irritating fumes.

Specification

 Benzo(a)pyrene-4,5-oxide ,its CAS number is 37574-47-3,it can be called benzo(a)pyrene 4,5-epoxide ; Benzo[a]pyrene-4,5-oxide ; 3b,4a-dihydrobenzo[1,2]pyreno[4,5-b]oxirene and 4,5-epoxy-4,5-dihydrobenzo[a]pyrene .

 Benzo(a)pyrene-4,5-oxide (CAS NO. 37574-47-3) is a toxic substance,with flammability, burning will produce toxic fumes,so it should be stored in cool and dry environment,dry powder,foam,sand, carbon dioxide,water mist can be used if something urgent happened.