(3E,8Z)-Tetradeca-3,8-dien-1-yl acetate
CAS 163041-87-0 C16H28O2 252.39 g/mol (3E,8Z)
Quotation within one business day. COA and SDS with every lot.
(3E,8Z)-Tetradeca-3,8-dien-1-yl acetate (CAS 163041-87-0): acetate ester for conjugated diene lures, packed to order with COA and SDS on every lot.
Two double bonds five carbons apart, at C3 and C8, and an acetate at the end of a fourteen-carbon chain. Despite the -dien- in the name this is not a conjugated system, so it behaves more like a simple unsaturated ester in storage than like the dienyl acetates it is catalogued beside. The parameters that matter to a QA department are the ones we keep stable between lots: identity, isomeric ratio and packing.
| CAS number | 163041-87-0 |
|---|---|
| Molecular formula | C16H28O2 |
| Molecular weight | 252.39 g/mol |
| Isomeric form | (3E,8Z) |
| Standard packing | 1kg / 25kg / 100kg |
| Documentation | COA and SDS with every lot |
| Quote basis | Per lot, specification agreed before dispatch |
An acetate ester, chemically
The ester linkage moderates the polarity of the chain, which is why acetates release more evenly from rubber and polymer matrices than the parent alcohols and are the backbone of many moth lures. The same linkage hydrolyses under acidic or basic conditions, so the carrier and any water in the system matter.
Stability in storage and on the dispenser
Hydrolysis and oxidation are the two ageing routes. Keep the material dry, sealed and away from acidic or basic contamination, and the lot will outlast a season; leave it in a humid store and the free acid will appear on the next chromatogram.
What the analytics have to show
Assay, isomeric ratio and the free-acid figure. For a dienyl acetate the geometry of the conjugated system is part of identity, not a detail: two lots with the same assay and a different E/Z split are not interchangeable.
How the specification sheet is written
A usable specification sheet states identity, isomeric ratio, assay method and the packing units, and it names the parameters that will be checked on receipt. Ours is written so that your incoming inspection can repeat the same measurements rather than take the figures on trust.
Isomeric form
The isomeric form also shapes how the material ages in a dispenser, so it is fixed at order rather than left to the batch. This entry is the (3E,8Z) form. The lot is released against that descriptor, and the ratio of the named isomer to its partner is stated on the certificate.
Load rate and blend position
Position in the blend matters more than absolute dose: an active at the head of a blend tolerates less isomer drift than one used as a trim.
Packing and lot size
Packing is 1kg / 25kg / 100kg. Short-dated or moisture-sensitive material is packed to limit headspace, not simply decanted into the nearest drum.
Documentation
The COA is batch-specific. A certificate copied from an earlier lot is not something we issue, because the ratio would then be a claim instead of a measurement.
Ordering
Quotations carry a validity period, since campaign and raw-material costs move. If one has expired, ask for a reissue rather than assuming the old figure.
Compatibility with carriers and dispensers
The carrier decides how much of the active is available at the surface. Rubber and polymer matrices hold a lipophilic compound longer than a liquid formulation does, and a highly volatile active will leave a thin matrix well before the season ends.
Fitment: the four questions
The catalogue lists actives, not blends. A blend is where the value sits, and blending is done by the customer or on request — enquiries that arrive with a blend sheet get a faster and more useful answer.
Cross-contamination in a blending house
Label discipline is the cheap half of the control. A container without a lot number cannot be compared with anything later, which is how a contamination incident becomes unresolvable.
What to send with an enquiry
Four lines are enough to make the reply specific: CAS number, quantity for the first order, packing preference and destination country. A specification sheet, if one exists, shortens it further.
From trial lot to production lot
A trial lot and a commercial lot come off different equipment. Customers who keep the trial certificate on file can put the two documents side by side, which is the only reliable way to see whether anything moved.
Questions buyers ask about this CAS
- Can we start with a trial quantity before a commercial order?
- Yes. A trial lot of (3E,8Z)-Tetradeca-3,8-dien-1-yl acetate is quoted separately from a production lot, because the packing and the analytical package differ. The sample carries the same documentation as a production lot, so the certificate you approve is the format you will receive at volume.
- What does the certificate of analysis report for this material?
- Identity, assay and isomeric ratio, each against a named method. (3E,8Z)-Tetradeca-3,8-dien-1-yl acetate is released against that certificate rather than against a catalogue description, and the lot number on the document matches the container.
- Can the packing be changed from 1kg / 25kg / 100kg?
- Usually, where the order supports it. Smaller fills are quoted with the packing cost shown separately, and customer-labelled units are handled as part of the order rather than as an exception afterwards.
- How is the isomeric form fixed for CAS 163041-87-0?
- It is written into the release specification and reported on the certificate. Where the name already carries a stereodescriptor — as this one does — matching that descriptor is the first condition of the release.
Handling and storage
Weighing is the usual point of contact: gloves and eye protection as listed in the SDS cover it.
Request a quotation for (3E,8Z)-Tetradeca-3,8-dien-1-yl acetate
The CAS number and the compound name are already filled in. Add the quantity, the packing you want and the destination, and the reply comes back with a specification against it.