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Chemical Properties

CAS Registry Number: 473-55-2

Selected information from two of the National Library of Medicine's databases: ChemIDPlus2 and HSDB3.

Names 1

  • Dihydropinene (9ci)
  • Pinane

Structure

Chemical Structure for Chemical Abstracts Service Registry Number 473-55-2 from NLM

Synonyms (Sources: NTP,HSDB,RTECS,MESH)2

  • Bicyclo(3.1.1)heptane, 2,6,6-trimethyl-
  • HSDB 5664
  • Pinane

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Other Registry Numbers2

  • 3092-29-3

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Chemical Properties3

Property Description
Boiling Point
  • 169 deg C
Color/Form
  • Oil
Corrosivity
  • None Found
Critical Temperature & Pressure
  • None Found
Density/Specific Gravity
  • 0.8467
Dissociation Constants
  • None Found
Heat Of Combustion
  • None Found
Heat Of Vaporization
  • None Found
Melting Point
  • -53 deg C
Molecular Weight
  • 138.25
Odor
  • None Found
Other Chemical/Physical Properties
  • Colorless liquid. BP: 164 deg C; density: 0.854 at 20 deg C/4 deg C; Index of refraction: 1.4610 at 20 deg C/D; Specific optical rotation: +21.4 degrees at 25 deg C/D (undiluted) /trans-pinane/
  • Colorless liquid. BP: 167.2-168 deg C; density: 0.8575 at 20 deg C/4 deg C; Index of refraction: 1.4626 at 20 deg C/D; Specific optical rotation: -23.6 degrees at 25 deg C/D (undiluted) /cis-pinane/
  • Colorless liquid. Insoluble in water. BP: 48-52 deg C at 1.3 Pa; density: 1.021 at 20 deg C/4 deg C; Index of refraction: 1.4898 at 20 deg C/D; Specific optical rotation: -27.4 degrees at 25 deg C/D (undiluted) /Pinane hydroperoxide/
  • Henry's Law constant = 0.35 atm-cu m/mole at 25 deg C (est)
  • Hydroxyl radical reaction rate constant = 1.34X10-11 cu cm/molecule-sec at 25 deg C /trans-isomer/
Relative Evaporation Rate
  • None Found
Solubilities
  • In water, 6.01 mg/L at 25 deg C (est)
Spectral Properties
  • Index of refraction: 1.4605 at 25 deg C
  • MASS: 30230 (NIST/EPA/MSDC Mass Spectral Database 1990 version)
Surface Tension
  • None Found
Taste
  • None Found
Vapor Density
  • None Found
Vapor Pressure
  • 2.19 mm Hg at 25 deg C (est)
Viscosity
  • None Found
log P (octanol-water)
  • log Kow = 4.35 (est)
pH
  • None Found

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Uses3

  • ... an important starting material in the industrial processes used in the fragrance and flavor industry **PEER REVIEWED**
  • ... use as a polymerization accelerator for rubber **PEER REVIEWED**
  • CHEM INT FOR 3,7-DIMETHYL-1,6-OCTADIENE, A PERFUMERY INT **PEER REVIEWED**
  • Pinane is used in industry for the production of pinane hydroperoxide. It is also important as an intermediate in the production of 3,7-dimethylocta-1,6-diene, which is used to produce perfumes, such as citronellol, citronellal and hydroxycitronellal. **PEER REVIEWED**

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Notes (Sources: NTP,HSDB,RTECS,MESH)2

  • None Found.

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Superlist Classes2

  • None Found

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Links to Additional Information2

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Footnotes

1 Source: the NTP's CEBS database.

2 Source: the National Library of Medicine's ChemIDPlus, 02/28/2017.

3 Source: the National Library of Medicine's Hazardous Substance Database, 02/28/2017.

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