Một dự án của Lê Mai A Lê Mai project · go to lemai.com.vn

Methyl octine carbonate (methyl 2-nonynoate)

Methyl non-2-ynoate

Methyl 2-nonynoate, MOC

Ester alkyne · Acetylenic ester · C₁₀H₁₆O₂

Chemical structure of Methyl octine carbonate (methyl 2-nonynoate)
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
111-80-8
Molecular formula
C₁₀H₁₆O₂
Molecular weight
168.24 g/mol
Origin
Synthetic
Odor family
Xanh Green
Note
Top
Aroma
Violet leaf and cucumber, green and slightly fatty.

History

The name "octine carbonate" is another historical misnomer: the molecule is the methyl ester of 2-nonynoic acid (nine carbons), not a carbonate. With methyl heptine carbonate it is one of the older synthetic violet leaf materials.

In perfumery

Used at trace levels for violet leaf and green notes. The EU limits it to 0.002%, with a combined cap of 0.01% together with methyl heptine carbonate.

Connections

EvokesViolet leaf

Regulatory status

EU max 0.002% · IFRA restricted
IFRA 51
Restricted by an IFRA Standard (entry "Methyl octine carbonate"), current version issued at Amendment 49. Maximum levels differ across the 12 product categories.
EU CosReg
Annex III, entry 173: maximum 0.002% alone; combined with methyl heptine carbonate, total not above 0.01%.
EU allergen 2023/1545
Not on the list of fragrance allergens requiring labelling, including after Regulation (EU) 2023/1545.

Sources

  1. NCI/CADD Chemical Identifier Resolver, CAS 111-80-8
  2. IFRA Standards Library, Amendments up to 51
  3. Regulation (EC) No 1223/2009, consolidated text of 18.05.2026, Annexes II and III