4-(n-Heptyloxy)butan-1-ol
4-(n-Heptyloxy)butan-1-ol (CAS 318256-94-9) is a C4 ether used as an aggregation pheromone component in surveillance and IPM work against Asian longhorned beetle and other species.
Our file records 2 targets for this material — Asian longhorned beetle (Anoplophora glabripennis); Citrus longhorned beetle (Anoplophora chinensis) — spanning longhorn and buprestid borers. That is why it is held for surveillance and programme work rather than as general stock.
It is supplied for formulation and for reference work: blend development, release-rate trials, and the isomer-ratio checks that quality systems ask for before a season starts.
Inside a longhorn surveillance programme
The two Anoplophora species that dominate quarantine surveillance — Asian longhorned beetle and citrus longhorned beetle — share a male-produced aggregation signal built from an ether and its aldehyde precursor. 4-(n-Heptyloxy)butan-1-ol is one half of that pair. The signal works when both halves and the host context are present, and when traps sit in the canopy of known host trees rather than at ground level.
Detections are rare events, so a programme is judged on how many host trees were examined per season and how fast a suspect beetle reaches an identifier. Consistency across the season matters more than peak attractiveness on any single day.
Isomer, stability and handling
Ethers of this type are relatively robust, which is why they are used as the volatile half of long-season dispensers where the second component has to keep pace.
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
Documentation is lot-based: certificate of analysis, GC trace and safety data sheet travel with the consignment, and an isomer-ratio statement can be added where a specification calls for it.
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 | 4-(n-Heptyloxy)butan-1-ol |
|---|---|
| CAS number | 318256-94-9 |
| Molecular formula | C11H24O2 |
| Molecular weight | 188.31 g/mol |
| Chemical class | Ether |
| Function | Aggregation pheromone 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 | S3-318256-94-9 |
Target species recorded against this compound
- Asian longhorned beetle Anoplophora glabripennis
- Citrus longhorned beetle Anoplophora chinensis
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.
