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1-Pentanethiol Basic information
1-Pentanethiol Chemical Properties
  • Melting point:-76°C
  • Boiling point:126 °C (lit.)
  • Density 0.84 g/mL at 25 °C (lit.)
  • vapor density 3.59
  • vapor pressure 27.4 mm Hg ( 37.7 °C)
  • refractive index n20/D 1.446(lit.)
  • Flash point:65 °F
  • storage temp. Store below +30°C.
  • solubility 0.16g/l
  • pka10.51±0.10(Predicted)
  • form liquid
  • color Water-white to yellow liquid
  • Odor Threshold0.00000078ppm
  • Water Solubility practically insoluble
  • Sensitive Air Sensitive
  • JECFA Number1662
  • Merck 14,611
  • BRN 1730979
  • CAS DataBase Reference110-66-7(CAS DataBase Reference)
  • NIST Chemistry Reference1-Pentanethiol(110-66-7)
  • EPA Substance Registry SystemAmyl mercaptan (110-66-7)
Safety Information
1-Pentanethiol Usage And Synthesis
  • Chemical PropertiesCLEAR COLORLESS LIQUID
  • Chemical PropertiesColorless liquid; meaty aroma.
  • UsesIn organic syntheses.
  • Aroma threshold valuesHigh strength odor; recommend smelling in a 0.10% solution or less.
  • General DescriptionA clear colorless to light-yellow liquid with an offensive odor. Flash point 65°F. Less dense than water and insoluble in water. Hence floats on water. Vapors are heavier than air. May be toxic by inhalation.
  • Air & Water ReactionsHighly flammable. Insoluble in water.
  • Reactivity Profile1-Pentanethiol is incompatible with oxidizing agents, reducing agents, alkali metals, calcium hypochlorite, concentrated nitric acid .
  • Health HazardInhalation may cause nausea because of offensive odor. Contact with eyes or skin causes slight irritation. Ingestion may cause vomiting.
  • Safety ProfileModerately toxic by inhalation. A weak sensitizer and allergen. Local contact may cause contact dermatitis. A flammable liquid and dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidming materials. Hypergolic reaction with concentrated nitric acid. To fight fire, use foam, CO2, dry chemical. See also MERCAPTANS
  • Purification MethodsDissolve the thiol in aqueous 20% NaOH, then extract with a small amount of diethyl ether. The aqueous solution is acidified slightly with 15% H2SO4, and the thiol is distilled out, dried with CaSO4 or CaCl2, and fractionally distilled under nitrogen. [Ellis & Reid J Am Chem Soc 54 1674 1932, Beilstein 1 IV 1453.]
1-Pentanethiol(110-66-7)Related Product Information
  • Company Name:Wuhan xinyangruihe Chemical Technology Co., Ltd. Gold
  • Tel:15307155313 027-83855313-
  • Company Name:J & K SCIENTIFIC LTD.
  • Tel:400-666-7788 010-82848833-
  • Company Name:Meryer (Shanghai) Chemical Technology Co., Ltd.
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  • Company Name:Alfa Aesar
  • Tel:400-610-6006
  • Company Name:TCI (Shanghai) Development Co., Ltd.
  • Tel:021-67121386 / 800-988-0390