trans-11-Tetradecenyl acetate
trans-11-Tetradecenyl acetate (CAS 33189-72-9) is a C14 acetate ester used as a female sex pheromone component in surveillance and IPM work against Obliquebanded leafroller and other species.
Our file records 6 targets for this material — Obliquebanded leafroller (Choristoneura rosaceana); European corn borer (Ostrinia nubilalis); Summer fruit tortrix (Adoxophyes orana); Light brown apple moth (Epiphyas postvittana); Tufted apple budmoth (Platynota idaeusalis); Smaller tea tortrix (Adoxophyes honmai) — spanning tortricids and allies. That is why it is held for surveillance and programme work rather than as general stock.
Buyers take it as a blend building block for a defined pest complex, with the loading and dispenser chosen for the flight period and for the trap design already in use in the stand.
Inside a budworm or leafroller programme
Tortricid sex pheromones are almost always multi-component, and the ratios carry the species message. trans-11-Tetradecenyl acetate is one of the components used to build those ratios. A blend that is right for one species in a stand can be close to useless for a congener fifty metres away, which is why programmes run species-specific blends side by side rather than one broad-spectrum lure.
Catch is read as a trend across weeks: the first sustained catch dates the flight, the peak dates the window for any intervention, and the tail of the curve tells you whether a second generation is present.
Isomer, stability and handling
Acetates hydrolyse slowly in the presence of moisture and are the class most disturbed by warm storage. Lot history — how the material has been held since manufacture — matters more than the headline assay.
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 / 50kg, with smaller development quantities available so a blend can be trialled before a bulk order. Lead time is confirmed at quotation.
Specification
| Product name | trans-11-Tetradecenyl acetate |
|---|---|
| CAS number | 33189-72-9 |
| Molecular formula | C16H30O2 |
| Molecular weight | 254.41 g/mol |
| Chemical class | Acetate ester |
| Function | Female sex pheromone component |
| Assay and isomeric purity | Stated per lot on the certificate of analysis |
| Standard packing | 1kg / 25kg / 50kg |
| Development quantity | Available on request, below standard pack |
| Lead time | Confirmed at quotation |
| Catalogue reference | S3-33189-72-9 |
Target species recorded against this compound
- Obliquebanded leafroller Choristoneura rosaceana
- European corn borer Ostrinia nubilalis
- Summer fruit tortrix Adoxophyes orana
- Light brown apple moth Epiphyas postvittana
- Tufted apple budmoth Platynota idaeusalis
- Smaller tea tortrix Adoxophyes honmai
Species records are drawn from the blend literature filed for this material. Where a programme targets a species not listed, the blend is usually a ratio question rather than a different compound — send the target and we will confirm.
