Rose Oxide Racemic

Product Name:

Rose oxide racemic

Synonyms:

(Z)-Rose oxide;2-(2-methyl-1-propenyl)-4-methyltetrahydro-pyra;2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-;2H-Pyran, tetrahydro-4-methyl-2-(2-methylpropenyl)-;4-Methyl-2-(2-methyl-1-propenyl)tetrahydro-2H-pyran;c-rose oxide;ROSE OXIDE BRI;Pyran, 2-(2-methyl-1-propenyl)-4-methyltetrahydro-

CAS:

16409-43-1

MF:

C10H18O

MW:

154.25

EINECS:

240-457-5

Product Categories:

Mol File:

16409-43-1.mol

Boiling point 

86 °C20 mm Hg(lit.)

density 

0.873 g/mL at 20 °C(lit.)

FEMA 

3236 | TETRAHYDRO-4-METHYL-2-(2-METHYLPROPEN-1-YL)PYRAN

refractive index 

n20/D 1.454

Fp 

157 °F

form 

neat

optical activity

[α]20/D 28±1°, neat

JECFA Number

1237

BRN 

1680588

CAS DataBase Reference

16409-43-1(CAS DataBase Reference)

EPA Substance Registry System

2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-propenyl)- (16409-43-1)

Hazard Codes 

Xi

Risk Statements 

38-36/37/38

Safety Statements 

36-26

WGK Germany 

3

RTECS 

UQ1470000

F 

10-23

HS Code 

29329990

Chemical Properties

Rose Oxide occurs in small quantities, mainly as the levorotatory cis form, in essential oils (e.g., Bulgarian rose oil and geranium oil). Commercial synthetic products are either optically active or inactive mixtures of the cis- and trans-isomers. Their sensory properties depend on the starting material and the method of synthesis.They are colorless liquids with a strong odor reminiscent of geranium and rose oil.

Chemical Properties

Tetrahydro-4-methyl-2-(2-methylpropen-1-yl)pyran has a powerful distinctive geranium top note.

Taste threshold values

Taste characteristics at 20 ppm: green, vegetative and herbal with a citrus nuance.

Raw materials

ETHYL LINALOOL