| Agent Name |
Methacrolein |
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| Alternative Name |
Methacrylaldehyde |
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| CAS Number |
78-85-3 |
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| Formula |
C4-H6-O |
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| Major Category |
Other Chemicals |
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| Synonyms |
2-Methyl-2-propenal; 2-Methylacrolein; 2-Methylenepropanal;2-Methylpropenal; 2-Methylpropenal [Czech]; 2-Propenal, 2-methyl-; Acrolein, 2-methyl-; Isobutenal; Methacrolein; Methacrylaldehyde; Methacrylic aldehyde; Methakrylaldehyd [Czech]; Methylacrylaldehyde; alpha-Methylacrolein; UN2396; [ChemIDplus] UN2396 |
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| Category |
Aldehydes |
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| Description |
A colorless liquid with a characteristic odor; [ICSC] |
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| Sources/Uses |
Used as a chemical intermediate and a monomer to produce resins; [HSDB] |
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| Comments |
Like acrolein (VP= 274; LC50 (mouse) = 66 ppm; LCLo (human) = 5.5 ppm), methacrolein (VP = 154; LCLo (mouse) = 125 ppm) is a skin and respiratory tract irritant with the potential to cause acute lung injury; [HSDB] |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
Not evaluated |
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| Vapor Pressure |
155 mm Hg |
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| Lethal Concentration |
LCLo (rats) = 125 ppm/4H |
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| Flammability (NFPA) |
3: may ignite at ambient temperature |
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| Adverse Effects |
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| Toxic Pneumonitis |
Yes |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: METHACROLEIN
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