Mucochloric acid
Agent Name
Mucochloric acid
CAS Number
87-56-9
Formula
C4-H2-Cl2-O3
Major Category
Other Classes
Synonyms
(Z)-2,3-Dichloro-4-oxo-2-butenoic acid; 2,3-Dichloro-4-oxo-2-butenoic acid; 2,3-Dichloromaleic aldehyde acid; 2,3-Dichloro-4-oxobutenoic acid; Acrylic acid, 2,3-dichloro-3-formyl-; Aldehydodichloromaleic acid; Dichloromalealdehydic acid; Kyselina mukochlorova [Czech]; alpha,beta-Dichloro-beta-formyl acrylic acid; alpha,beta-Dichloro-beta-formylacrylic acid; [ChemIDplus] MCA; [HSDB] UN2923
Category
Organic Acids
Description
Colorless to yellowish solid; [CHEMINFO] Crystalline solid; [MSDSonline]
Sources/Uses
Used to make dyes, pyridaben (acaricide), and the active ingredient in the production of a specialized herbicides; Also used as a photographic gelatin hardening agent; [HSDB]
Comments
A strong skin and eye irritant; A powerful skin sensitizer; [Merck Index] Can cause burns; May cause skin sensitization; Emergency medical treatment: acids; [HSDB] A corrosive substance that can cause injury to the skin and eyes; [CHEMINFO] Search by CAS # found no articles concerning contact dermatitis; [PubMed] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; [MSDSonline]
Biomedical References
Exposure Assessment
Vapor Pressure
0.001 mm Hg
Lethal Concentration
LC50 (rat) = 5,100 mg/m3/4h
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Corrosive solid, toxic, n.o.s."
Adverse Effects
Toxic Pneumonitis
Yes
Dermatotoxin
Skin burns
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: