3-Methylbut-2-enal

3-Methylbut-2-enal (CAS 107-86-8) is a C4 aldehyde used as a semiochemical component in lures, release-rate trials and reference work.

No target species is recorded against this material in our file, so it is catalogued as a blend component and reference material. If a specification needs species named, send the target and we will confirm whether this isomer is the right starting point.

Where it is used

This material sits in the working part of the catalogue: the compounds formulation teams ask for by CAS when a blend needs a specific isomer, a reference point for a chromatogram, or a small quantity to test before committing to a drum.

Isomer, stability and handling

Aldehydes are the most oxidation-sensitive class here. In practice the (E)/(Z) geometry of the double bond, not the headline assay figure, is what decides whether a blend behaves as the specification intends, so the isomer statement on the certificate is the number to read first.

Store cool, dry and dark: sealed under nitrogen or argon at −20 °C for holdings longer than one season, and let containers reach room temperature before opening so condensation does not enter the material. Weigh and formulate in a ventilated area; the safety data sheet gives handling detail for the neat substance.

Documentation and packing

Paperwork is deliberately boring: certificate of analysis with assay and isomer figures, GC trace, SDS and packing list. Nothing is quoted that cannot be reproduced on a rerun.

Standard packing for this line is 1kg / 25kg / 100kg, with smaller development quantities available so a blend can be trialled before a bulk order. Lead time is confirmed at quotation.

Specification

Product name	3-Methylbut-2-enal
CAS number	107-86-8
Molecular formula	C5H8O
Molecular weight	84.12 g/mol
Chemical class	Aldehyde
Function	Semiochemical component
Assay and isomeric purity	Stated per lot on the certificate of analysis
Standard packing	1kg / 25kg / 100kg
Development quantity	Available on request, below standard pack
Lead time	Confirmed at quotation
Catalogue reference	S3-107-86-8

Targets

No species record is held against this material in our file. It is supplied as a blend component, an isomer for formulation work, or a reference standard. Tell us the species and we will say whether this is the right starting point.