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 |  | CYCLOPENTANETHIOL Basic information |  
 | Product Name: | CYCLOPENTANETHIOL |  | Synonyms: | cyclopentylthiol;mercaptancyclopentylique;MERCAPTOCYCLOPENTANE;FEMA 3262;CYCLOPENTANETHIOL;CYCLOPENTYL MERCAPTAN;CYCLOPENTANETHIOL  97+%;Cyclopentanthiol |  | CAS: | 1679-07-8 |  | MF: | C5H10S |  | MW: | 102.2 |  | EINECS: | 216-841-3 |  | Product Categories: |  |  | Mol File: | 1679-07-8.mol |    |  
  
 |  | 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) |  | FEMA  | 3262 | CYCLOPENTANETHIOL |  | refractive index  | n20/D 1.4902(lit.) |  | Fp  | 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) |  
  
| 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 |  
  
 |  | CYCLOPENTANETHIOL Usage And Synthesis |  
 | Chemical Properties | Annual: <1.00 lb |  | Chemical Properties | Colorless liquid |  | Uses | 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 |  
  
 |  | CYCLOPENTANETHIOL Preparation Products And Raw materials |  
 | Raw materials | Cyclopentanone-->Dimethyl disulfide-->Alkali Metals, plasma standard solution, Specpure, Ba,Be,Ca,Cs,K,Li,Mg,Na,Rb,Sr, 100μg/ml-->ethanethial-->ALUMINUM SILICATE |  
  
 
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