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1,1,1-Trichloroethane

CAS Number

71-55-6

Synonym

Trichloroethane; Aerothene TT;Chlorotene; Chlorothane NU; Chlorothene; Chlorothene NU; Chlorothene; TCA VG; Chlorten; Inhibisol; Methyl chloroform; Methylchloroform; Methyltrichloromethane; Trichloroethane;1,1,1-Trichloroethane; CH3CCl3; Chloroethene NU; Chloroform, methyl-; NCI-C04626; Solvent 111; Trichloro-1,1,1-ethane; 1,1,1-Trichloorethan; 1,1,1-Trichloraethan; 1,1,1-Tricloroetano;CF 2; Chloroetene; Chloroethene; Chlorothene sm; Ethana nu; Ici-cf

Occurrence/Use

Solvent, degreaser. Manufacture for domestic use banned in US since 2002.

1,1,1-Trichloroethane

Soil Screening

Last CHHSL revision: 
1/2005
CHHSL Comments: 

For chemical-specific screening levels for use in assessing contaminated sites, please see HHRA Note 3 (DTSC HERO). https://www.dtsc.ca.gov/assessingrisk/humanrisk2.cfm

Cancer Potency Information

Latest Criteria: 
California Public Health Goals

Air

Acute RELs

Acute REL (μg/m3): 
68000
Species: 
Human
Acute REL Toxicologic Endpoint: 
Central nervous system
Acute REL Target Organs: 
Nervous system
Severity: 
Mild
Last Acute REL Revision: 
1999
Acute Reference Exposure Levels Comments: 

Chronic REL

Chronic Inhalation REL (μg/m3): 
1000
Chronic Target Organs: 
Nervous system
Human Data: 
No
Last Chronic REL Revision: 
2000
Chronic Reference Exposure Levels Comments: 

Proposition 65

Chemical Status

Cancer: 
Currently listed

Cancer

Listed as causing: 
Cancer
Date of Listing: 
04/21/2023
Basis for Listing: 
Labor Code

Public notices related to this chemical: 

Water

California Public Health Goals Data

Health Risk Category: 
Neurotoxicity, reproductive toxicity (causes fewer offspring), hepatotoxicity (liver), hematotoxicity (blood effects)
Public Health Goal (mg/L): 
1
Public Health Goal - Download: 
Cancer Risk at PHG: 
n/a
MCL value (mg/L): 
0.2
Cancer Risk at MCL: 
n/a
Last PHG Revision : 
2006
California PHG Comments: