Cyclopentanethiol
Synonym(s):Cyclopentyl mercaptan
- CAS NO.：1679-07-8
- Empirical Formula: C5H10S
- Molecular Weight: 102.2
- MDL number: MFCD00001369
- EINECS: 216-841-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-11-12 15:22:20
What is Cyclopentanethiol?
Chemical properties
Colorless liquid
Chemical properties
Annual: <1.00 lb
The Uses of Cyclopentanethiol
Cyclopentanethiol has used as a food spice. It is a pharmaceutical intermediate.
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.
Definition
ChEBI: Cyclopentanethiol is an alkanethiol.
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
Properties of Cyclopentanethiol
| 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) |
| FEMA | 3262 | CYCLOPENTANETHIOL |
| refractive index | n |
| Flash point: | 77 °F |
| form | Liquid |
| pka | 10.87±0.20(Predicted) |
| color | Clear colorless to pale yellow |
| Odor | at 0.01 % in propylene glycol. alliaceous onion garlic horseradish vegetable celery eggy |
| Water Solubility | Slightly soluble in water; soluble in alcohol and oils. |
| Sensitive | Air Sensitive |
| JECFA Number | 516 |
| BRN | 2343861 |
| CAS DataBase Reference | 1679-07-8(CAS DataBase Reference) |
| EPA Substance Registry System | Cyclopentanethiol (1679-07-8) |
Safety information for Cyclopentanethiol
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H226:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P243:Take precautionary measures against static discharge. |
Computed Descriptors for Cyclopentanethiol
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