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Hexachlorocyclohexane (Technical Grade)

CAS Number

608-73-1

Synonym

BHC; HCCH; HCH; TBH; Benzene hexachloride; Hexachlorocyclohexanes; Agrocide; Ambiocide; Benzahex; DBH; DOL; Dolmix; FBHC; Gammacide; Gammacoid; Gammexane; Gamtox; Gexane; Hexablanc; Hexachlor; Hexachloran; 1,2,3,4,5,6-Hexachlorocyclohexane; Hexafor; Hexamul; Hexapoudre; Hexyclan; Isatox; Kotol; Lexone; Lintox; Soprocide; TBH

Occurrence/Use

Insecticide containing gamma-HCH (lindane) as well as alpha, beta, delta, and epsilon forms of HCH. Technical grade HCH has not been produced on used in the US in over 20 years.

Hexachlorocyclohexane (Technical Grade)

Cancer Potency Information

Inhalation Unit Risk (μg/cubic meter)-1: 
1.1 E-3
Inhalation Slope Factor (mg/kg-day)-1: 
4.0 E+0
Oral Slope Factor (mg/kg-day)-1: 
4.0 E+0
Comments/References: 

OEHHA 2009. Air Toxics Hot Spots Program Technical Support Document for Cancer Potencies. Appendix B. Chemical-specific summaries of the information used to derive unit risk and cancer potency values. Updated 2011. Listed as Hexachlorocyclohexanes (technical grade).

 

Note: This value was used as the basis of the No Significant Risk Level that was adopted for the purposes of the Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65).

Air

Proposition 65

Chemical Status

Cancer: 
Currently listed

Cancer

Listed as causing: 
Cancer
Date of Listing: 
10/01/1987
Basis for Listing: 
State's Qualified Experts

Safe Harbor Levels

Cancer
No Significant Risk Level (NSRL): 
0.2 µg/day (technical grade), 0.3 µg/day (alpha isomer), 0.5 µg/day (beta isomer), 0.6 µg/day (gamma isomer)

Comments

Alpha, beta, and gamma isomers of hexachlorocyclohexane listed October 1, 1989 as 'Lindane and other hexachlorocyclohexane isomers' via the Labor Code listing mechanism.