Agent Name | Mucochloric acid |
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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] |
Reference Link | |
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 |
Links to Other NLM Databases | |
Health Studies | Human Health Effects from Hazardous Substances Data Bank: |
Toxicity Information | |
Chemical Information | |
Related Information in HazMap | |
Processes | Industrial Processes with risk of exposure: |