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Rose crystal (trichloromethyl phenyl carbinyl acetate)

(2,2,2-trichloro-1-phenylethyl) acetate

Rose crystal, Rosacetol, 2,2,2-Trichloro-1-phenylethyl acetate

Chlorinated ester · C₁₀H₉Cl₃O₂

Chemical structure of Rose crystal (trichloromethyl phenyl carbinyl acetate)
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
90-17-5
Molecular formula
C₁₀H₉Cl₃O₂
Molecular weight
267.54 g/mol
Origin
Synthetic
Odor family
Floral
Note
Base
Aroma
Dry rose petal, slightly powdery; faint but very tenacious.

History

This is the acetate of a trichloromethyl-bearing alcohol, a crystalline solid sold as Rose crystal or Rosacetol.

In perfumery

Used to fix rose notes in soap and floral bases.

Connections

EvokesRose

Regulatory status

No specific limit
IFRA 51
No dedicated IFRA Standard in the IFRA library as of Amendment 51.
EU CosReg
No specific entry in Annex II or III of Regulation (EC) 1223/2009.
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 90-17-5
  2. IFRA Standards Library, Amendments up to 51
  3. Regulation (EC) No 1223/2009, consolidated text of 18.05.2026, Annexes II and III