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2-Nonyn-1-al dimethyl acetal

RESTRICTION
CAS
13257-44-8
EC
Material type
other
Canonical source
document derived
chemicals · No. 2448

Arctander monograph

Perfume and Flavor Chemicals, page 1066.

tenacity · moderatepower · moderate
floralgreensweetviolet
MW
170.25
BP
225°C
MP
Sp.Gr.
Refractive n
Rotation
Appearance

Colorless oily liquid.

Solubility

Practically insoluble in water, soluble in alcohol and oils.

Odor

Powerful, floral-green, sweet and violet-leaf-like odor of moderate to poor tenacity.

Uses in perfumery

This acetal was marketed several years ago under the name Parmavert and it was very well received. In spite of the fact that it may never become a volume item on account of its power, it will undoubtedly find its place in a great variety of fragrance types, other than violet and leaf-types. Its main asset is its natural sweet-weedy odor, which falls equally well into a violet and narcisse as in a citrus, fougére or moss-type fragrance. It performs excellently with mimosa, cyclamen aldehyde, geranium oil, oakmoss, galbanum, styrallyl propionate, gardenia bases, etc.

Production

Produced from 1-octyne by reaction with ethyl-ortho-formate directly to the acetal. Octyne is obtained from octene via bromination and debromination.

Document-derived

IFRA restrictions

CategoryKindMax %NotesSource
Category 1Max %1.8%
DOC
Category 2Max %0.53%
DOC
Category 3Max %11%
DOC
Category 4Max %9.9%
DOC
Category 5AMax %2.5%
DOC
Category 5BMax %2.5%
DOC
Category 5CMax %2.5%
DOC
Category 5DMax %2.5%
DOC
Category 6Max %5.8%
DOC
Category 7AMax %20%
DOC
Category 7BMax %20%
DOC
Category 8Max %1%
DOC
Category 9Max %19%
DOC
Category 10AMax %69%
DOC
Category 10BMax %69%
DOC
Category 11AMax %38%
DOC
Category 11BMax %38%
DOC
Category 12No restrictionNo Restriction
DOC

Compliance-support only. Values resolved from the current IFRA corpus; each row cites the document excerpt it came from. Not a substitute for a qualified safety assessor.

Identity
Aliases · 7
2-Nonyn-1-al dimethyl acetal1,1-Dimethoxynon-2-yne2-Nonyn-1-al-Dimeth-Acetyl2-Nonyne, 1,1-dimethoxy-Hexyl propiolic aldehyde dimethylacetalParmavertParmavert (commercial name)
Compliance note. Restriction data is sourced directly from IFRA publications and preserved with its document excerpt. Perfume Foundry is a compliance-support tool — not a substitute for a qualified safety assessor (CPSR / PIF).