Food safety and quality
| share

Online Edition: "Specifications for Flavourings"

Flavouring Tetrahydro-4-methyl-2-(2-methylpropen-1-yl)pyran
Synonym(s) Rosenoxide;Rosoxide;Rose oxide;4-Methyl-2-(2-methyl-1-propenyl)-tetrahydropyran;2-Isobutenyl-4-methyltetrahydropyran;cis-Rose oxide
Latest JECFA evaluation 2003 (Session 61)
Status of specification Full
Chemical name Tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-2H-pyran
JECFA number 1237
CAS number 16409-43-1
FEMA number 3236
COE number
FLAVIS number 13.170
Molecular weight 154.25
Chemical formula C10H18O
Physical form/odour colourless mobile liquid, powerful, distinctive geranium top note
Solubility Slightly soluble in water; soluble in oils
Solubility in ethanol soluble
Boiling point (°C) 182°
Assay min % 99%
Acid value max 1
Refractive index 1.453-1.457
Specific gravity 0.873-0.877
Other requirements