Methylmercuric chloride
Agent Name
Methylmercuric chloride
CAS Number
115-09-3
Formula
C-H3-Cl-Hg
Major Category
Metals
Synonyms
Caspan; Caspan (VAN); Chloromethyl mercury; Chloromethylmercury; Mercury methyl chloride; Mercurymethylchloride; Methyl mercuric chloride; Methyl mercuric(II) chloride; Methyl meruric chloride; Methylmercury chloride; Methylmercury monochloride; Methylmerkurichlorid [Czech]; Monomethyl mercury chloride; [ChemIDplus] UN2025
Category
Metals, Organic Compounds
Description
White solid; [CAMEO]
Comments
May cause CNS injury and death; [CAMEO] May be fatal by inhalation, skin absorption, or ingestion; May cause irritation; Targets nerves; [MSDSonline] See "Mercury, alkyl compounds" and linked occupational diseases.
Biomedical References
Exposure Assessment
Skin Designation (ACGIH)
Yes
TLV (ACGIH)
0.01 mg/m3, as Hg
STEL (ACGIH)
0.03 mg/m3, as Hg
PEL (OSHA)
0.01 mg/m3, Ceiling(OSHA) = 0.04 mg/m3, as Hg
IDLH (NIOSH)
2 mg/m3, as Hg
Lethal Concentration
LC50 (mice) = 80 mg/m3/4h
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Mercury compound, solid, n.o.s."
Adverse Effects
Neurotoxin
Other CNS neurotoxin
Nephrotoxin
Yes
Reproductive Toxin
Yes
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent: