Product Name: trans-α-Benzenehexachloride (CAS NO.319-85-7)

Molecular Formula: C₆H₆Cl₆
Molecular Weight: 290.83g/mol
Mol File: 319-85-7.mol
Einecs: 206-271-3
Appearance: Colorless crystals
Melting Point: ≥300 °C
Boiling point: 288 °C at 760 mmHg
Storage Temperature: Approx 4°C
Flash Point: 157.5 °C
Density: 1.59 g/cm³
Water Solubility: Slightly soluble in water
Surface Tension: 41 dyne/cm
Enthalpy of Vaporization: 50.61 kJ/mol
Vapour Pressure: 0.00416 mmHg at 25°C
XLogP3: 3.8
H-Bond Donor: 0
H-Bond Acceptor: 0
Product Categories: A-BAlphabetic; B; BA - BH; HA -HTPesticides; Alpha sort; H; H-MAlphabetic; Insecticides; Organochlorines; Pesticides and Metabolites

NTP 10th Report on Carcinogens. IARC Cancer Review: Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man , 5 (1974),p. 47.(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 , 20 (1979),p. 195.(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) . Reported in EPA TSCA Inventory.

Confirmed carcinogen with experimental neoplastigenic data. Mildly toxic by ingestion. When heated to decomposition it emits very toxic fumes of Cl⁻, HCl, and phosgene. See also BENZENE HEXACHLORIDE and other benzenehexachloride entries.
Analytical Methods: 
For occupational chemical analysis use NIOSH: aldrin and lindane, 5502.
Safety Information of trans-α-Benzenehexachloride (CAS NO.319-85-7):
Hazard Codes: F,T,N
Risk Statements: 11-23/24/25-39/23/24/25-50/53-40-25-21
11:  Highly Flammable
21:  Harmful in contact with skin 
23:  Toxic by inhalation 
24:  Toxic in contact with skin 
25:  Toxic if swallowed 
39:  Danger of very serious irreversible effects 
40:  Limited evidence of a carcinogenic effect 
50:  Very Toxic to aquatic organisms
53:  May cause long-term adverse effects in the aquatic environment
Safety Statements: 7-16-24-45-36/37-61-60-22
7:  Keep container tightly closed
16:  Keep away from sources of ignition - No smoking
22:  Do not breathe dust 
24:  Avoid contact with skin 
36:  Wear suitable protective clothing  
37:  Wear suitable gloves 
45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
61:  Avoid release to the environment. Refer to special instructions safety data sheet 
62:  If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label 

DFG MAK: 0.5 mg/m³

For occupational chemical analysis use NIOSH: aldrin and lindane, 5502.

 trans-α-Benzenehexachloride ,its CAS NO. is 319-85-7,the synonyms is beta-Hexachlorocyclohexane ; beta-Hch ; Bhc (beta isomer) ; beta-1,2,3,4,5,6-Hexachlorocyclohexane ; beta-Benzenehexachloride ; beta-Bhc ; b-Bhc ; 1,2,3,4,5,6-Hexachlorocyclohexane, beta-isomer .