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Registry of Toxic Effects of Chemical Substances (RTECS)

Formic acid, chloro-, trichloromethyl ester

RTECS #

LQ7350000

CAS #

503-38-8

Updated

April 2010

Molecular Weight

197.82

Molecular Formula

C2Cl4O2

Synonyms

Carbonochloridic acid trichloromethyl ester
Difosgen (Czech)
Diphosgen
Diphosgene
Methanol, trichloro-, chloroformate
Trichlormethylester kyseliny chlormravenci (Czech)
Trichloromethyl chloroformate

Acute Toxicity Data and References

Route/OrganismDoseEffectReference
inhalation/rabbit Lowest published lethal concentration: 900 mg/m3/15MLung, Thorax, or Respiration: Ciliary function changes

Lung, Thorax, or Respiration: Acute pulmonary edema

Lung, Thorax, or Respiration: Other changes
FMORAO 19,5,1971

Reviews

OrganizationStandardReference
TOXICOLOGY REVIEWENTOX* -,76,2005
TOXICOLOGY REVIEWCCACL* 21,719,2005

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
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