(2E,13Z)-Octadeca-2,13-dien-1-ol

As CAS 123551-47-3, (2E,13Z)-Octadeca-2,13-dien-1-ol is a C18H34O alcohol with a standard packing of 1kg / 25kg / 100kg.

Hydroxyl groups at this position are often carried unprotected through two or three steps, which makes the water content of the lot more important than a headline assay. The name fixes the geometry at C2, C13, so the entry is a defined isomer rather than a mixture and the lot is qualified on that isomer. More than one double bond means the isomer pattern, not the chain length, is what the downstream separation has to resolve.

The formula C18H34O resolves to 18 carbons with one oxygen. With 18 carbons the lipophilicity dominates: solubility in polar media falls away and the work-up is usually a phase separation.

Handling and storage

Store closed and dry. Water content is the value that drifts on an opened container, more than the assay does.

Ordering

Quoted from stock in 1kg / 25kg / 100kg, or made to order where the lot has run down. Either way the same release testing applies. The certificate states identity, assay and the analytical method used; a tighter limit than the catalogue entry can be written into the lot specification.

Registry synonyms: Sesiidae(Clearwing moths); Sesia apiformis(Hornet moth / Hornet clearwing); Paranthrene tabaniformis(Poplar clearwing moth / Dusky clearwing); Macroscelesia longipes(Long-legged clearwing moth).