Molecular Structure of 7-Nitro benz(a)anthracene (CAS NO.20268-51-3):

IUPAC Name: 7-nitrobenzo[a]anthracene
Empirical Formula: C₁₈H₁₁NO₂ 
Molecular Weight: 273.2854 
Surface Tension: 63.2 dyne/cm
Density: 1.342 g/cm³ 
Flash Point: 246.3 °C
Enthalpy of Vaporization: 73.39 kJ/mol 
Boiling Point: 495.3 °C at 760 mmHg
Vapour Pressure: 1.82E-09 mmHg at 25°C 
Index of Refraction: 1.791
Classification Code : Tumor data;Mutation data
Synonyms of 7-Nitro benz(a)anthracene (CAS NO.20268-51-3): 7-nitro-benz(a)anthracen ; 7-nitrobenzanthracene ; 7-nitro-benz(a)anthracen (100UG/ML IN TOLUENE) ; 7-nitrobenz[α]anthracene(100μg/mL in toluene) ; Benz(a)anthracene, 7-nitro- 

IARC Cancer Review: Group 3 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 46 ,1989,p. 247.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Limited Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 46 ,1989,p. 247.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human No Adequate Data IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 46 ,1989,p. 247.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) .

Mutation data reported. When heated to decomposition it emits toxic vapors of NO_x.