3-Methyl-2-butenal

Independent reference data for 3-Methyl-2-butenal (CAS 107-86-8), compiled from public chemistry databases.

Registry identifiers across databases

Computed descriptors

Physicochemical values on record

Documented uses on record

Used as a flavoring agent; [FDA] Used to make citral and other chemicals and for the reconstitution of essential oils and other natural products; [OECD SIDS: IUCLID Data Set]Flavouring Agent -> FLAVOURING_AGENT -> JECFA Functional Classes

Synonyms and trade names

3-Methyl-2-butenal; 3-Methylbut-2-enal; 107-86-8; Senecialdehyde; 3-Methylcrotonaldehyde; 3,3-Dimethylacrolein; Senecioaldehyde; 2-BUTENAL, 3-METHYL-; Crotonaldehyde, 3-methyl-; beta-Methylcrotonaldehyde; beta,beta-Dimethylacrolein; 3,3-Dimethyl-acrylaldehyde; beta,beta-Dimethylacrylic aldehyde; FEMA No. 3646; DTXSID8029606; 2JZ2B60W76

Regulatory listings held on file

Regulatory & Food Contact	EU Flavoring substances FDA Substance added to food: FLAVORING AGENT OR ADJUVANT Flavoring Agents FLAVOURING_AGENT: Flavouring Agent Almond, Roasted No safety concern at current levels of intake when used as a flavouring agent

GHS hazard classification

Reported hazard statements	H226 (100%), H302 (100%), H314 (99.7%), H317, H318 (89.1%), H331, H370, H372

H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]

H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]

What the public record says

3-Methyl-2-butenal is identified by CAS 107-86-8, molecular formula C5H8O and molecular weight 84.06 g/mol. UNII 2JZ2B60W76; ChEBI 15825; InChIKey SEPQTYODOKLVSB-UHFFFAOYSA-N. Boiling Point: 134 °C; Boiling Point: 136 °C; Boiling Point: 133-135 °C.

Physical description and handling notes

Source: PubChem / Wikidata; the batch COA governs where values differ.