Chinese name: Menthol
English name: DL-Menthol
CAS: 89-78-1
EINECS number: 216-074-4
Molecular formula: C10H20O
MDL number: MFCD00001484
Molecular weight: 156.27
category
Raw material: antiseptic
Appearance: The left spin is colorless acicular crystal. Melting point 42-43 ° C, boiling point 216 ° C, specific rotation -51°-45°, flash point 93 ° C, relative density 0.8810, soluble in ethanol, miscible with oil. It has a cool, clear, pleasant mint characteristic aroma with a sweet, sharp scent. Gives a cold feeling, the aroma is strong, but not long enough. The taste is also fresh and sweet cool taste.
Melting point: 34-36 °C(lit.)
Specific rotation: -2 º (c=10, EtOH)
Boiling point: 216 °C(lit.)
Density: 0.89 g/mL at 25 °C(lit.)
Vapor pressure: 0.8 mm Hg (20 °C)
FEMA: 2665
Refractive index: 1.4615
Flash point: 200 °F
Storage: Store below +30°C.
Solubility: 456 mg/L
Acidity coefficient (pKa) : 15.30±0.60(Predicted)
Form: crystalline solid
Color: Colorless to white
Odor: at 10.00 % in dipropylene glycol. peppermint cool woody
Scent type: mentholic
Water solubility: insoluble
JECFA Number: 427
Merck: 14,5837
BRN: 3194263
LogP: 3.4 at 37℃
use
In medicine, it is used for cooling oil, painkillers, etc., and it is also used for making toothpaste, tooth powder, candy, drinks, spices and so on