3-Mercapto-2-methylpenta-1-ol

CAS NO.：227456-27-1
Empirical Formula: C6H14OS
Molecular Weight: 134.24
MDL number: MFCD08741458
EINECS: 927-385-6
SAFETY DATA SHEET (SDS)
Update Date: 2024-07-18 05:12:15

What is 3-Mercapto-2-methylpenta-1-ol?

Chemical properties

3-Mercapto-2-methylpentan-1-ol (racemic) is a highly odorous mercaptan with an onion or leek-like aroma. Flavor quality was reported to strongly depend on concentration.

Occurrence

Reportedly present in onion.

Preparation

Prepared by a highly diastereoselective aldol reaction using a chiral auxiliary process with further derivatization yielding the enantiopure compound.

Definition

ChEBI: 3-Mercapto-2-methylpentanol is an alkanethiol.

Aroma threshold values

At low concentrations (0.5 ppb), a pleasant, meat-broth, sweaty, onion and leek-like odor can be perceived.

Properties of 3-Mercapto-2-methylpenta-1-ol

Boiling point:	205.0±23.0 °C(Predicted)
Density	0.959±0.06 g/cm3(Predicted)
FEMA	3996 \| 3-MERCAPTO-2-METHYLPENTAN-1-OL (RACEMIC)
pka	10.50±0.10(Predicted)
form	clear liquid
color	Colorless to Light yellow
Odor	at 0.10 % in propylene glycol. sulfurous onion
JECFA Number	1291

Safety information for 3-Mercapto-2-methylpenta-1-ol

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H227:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool.