Cyclopentanethiol Chemical Properties

Melting point:

-117.76°C

Boiling point:

129-131 °C/745 mmHg (lit.)

Density 

0.955 g/mL at 25 °C (lit.)

vapor density 

0.96 (vs air)

vapor pressure 

1 mm Hg ( 20 °C)

refractive index 

n20/D 1.4902(lit.)

FEMA 

3262 | CYCLOPENTANETHIOL

Flash point:

77 °F

pka

10.87±0.20(Predicted)

form 

Liquid

color 

Clear colorless to pale yellow

Odor

at 0.01 % in propylene glycol. alliaceous onion garlic horseradish vegetable celery eggy

Odor Type

alliaceous

Water Solubility 

Slightly soluble in water; soluble in alcohol and oils.

Sensitive 

Air Sensitive

JECFA Number

516

BRN 

2343861

LogP

2.21

CAS DataBase Reference

1679-07-8(CAS DataBase Reference)

EPA Substance Registry System

Cyclopentanethiol (1679-07-8)

Safety Information

Risk Statements 

10

Safety Statements 

16-23-24/25

RIDADR 

UN 3336 3/PG 3

WGK Germany 

3

RTECS 

GY4701000

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29309090

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Cyclopentanethiol Usage And Synthesis

Description

Cyclopentanethiol belongs to the class of organic compounds known as alkylthiols. These organic compounds contain the thiol functional group linked to an alkyl chain. Cyclopentanethiol is an alliaceous, celery, and citrus-tasting compound.

Chemical Properties

Colorless liquid

Chemical Properties

Annual: <1.00 lb

Uses

Cyclopentanethiol has used as a food spice. It is a pharmaceutical intermediate.

Definition

ChEBI: Cyclopentanethiol is an alkanethiol.

Preparation

From cyclopentyl bromide and potassium hydrosulfide; by treating cycloalkanone dimethyl dithioacetals with four equivalents of an alkaline metal; from cyclopentyl naphthyl sulfide and an aluminosilicate catalyst.

Taste threshold values

Taste characteristics at 2 ppm: alliaceous, onion, garlic, horseradish, meat, egg, burned, vegetable, celery.

Safety Profile

A human poison. A flammable liquid. When heated to decomposition it emits toxic vapors of SOx

Cyclopentanethiol(1679-07-8)Related Product Information

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• 1-THIA-4-AZA-SPIRO[4.4]NONAN-3-ONE
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• N2-(5-[(2-BENZYL-7-BROMO-2-AZABICYCLO[2.2.1]HEPT-6-YL)THIO]-1,3,4-THIADIAZOL-2-YL)THIOPHENE-2-CARBOXAMIDE
• 1-(PHENYLSULFONYL)CYCLOPENTANECARBOXYLIC ACID
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• CYCLOPENTYLMETHYLSULFIDE
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• Theophylline, 8-cyclopentylthio-
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