p-Menthene-8-thiol

CAS NO.：71159-90-5
Empirical Formula: C10H18S
Molecular Weight: 170.31
MDL number: MFCD08437480
EINECS: 275-223-1
SAFETY DATA SHEET (SDS)
Update Date: 2025-12-17 09:49:40

What is p-Menthene-8-thiol?

Chemical properties

p-Menthene-8-thiol has been identified in grapefruit juice. It is a liquid with an extremely powerful, obnoxious odor; when diluted, it has the typical aroma of fresh grapefruit juice. Its odor threshold value is extremely low: 2×10^-5 μg/kg for the (+)-R and 8×10^-5 μg/kg for the (?)-S isomer.

Chemical properties

1-p-Menthene-8-thiol has an aroma and taste of grapefruit in dilute solution.

Occurrence

Reported found in grapefruit juice.

Definition

ChEBI: 2-(4-Methylcyclohex-3-en-1-yl)propane-2-thiol is a p-menthane monoterpenoid.

Aroma threshold values

Aroma characteristics at 0.01%: grapefruit, sulfurous catty, citrus, thiomenthone, slightly cooling, green rindy, juicy with nootkatone.

Taste threshold values

Taste characteristics at 0.01 ppm: bitter, waxy, citrus, clean grapefruit, fresh-squeezed juicy with nootkatone and orange juice nuances.

Properties of p-Menthene-8-thiol

Boiling point:	229.4±9.0 °C(Predicted)
Density	0.938±0.06 g/cm3(Predicted)
FEMA	3700 \| 1-p-Menthene-8-thiol
pka	11.12±0.10(Predicted)
Odor	at 1.00 % in triethyl citrate. sulfury aromatic grapefruit naphthyl resinous woody
JECFA Number	523
NIST Chemistry Reference	1- p-menth-1-ene-8-thiol(71159-90-5)
EPA Substance Registry System	3-Cyclohexene-1-methanethiol, .alpha.,.alpha.,4-trimethyl- (71159-90-5)