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Online Edition: "Specifications for Flavourings"

Flavouring 2, 3, or 10-Mercaptopinane
Synonym(s) Pinanethiol;Pinanyl mercaptan
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name Mixture of 2,6,6 Trimethyl-bicyclo[3.1.1]heptane-(2, 3 and 10)-thiols
JECFA number 520
CAS number
FEMA number 3503
COE number 2332
FLAVIS number
Molecular weight 170.31
Chemical formula C10H18S
Physical form/odour sulfurous, tropical fruit, mercaptan odour
Solubility insoluble in water; soluble in alcohol and oils
Solubility in ethanol
Boiling point (°C) 258-259°
Assay min % 95%
Acid value max
Refractive index 1.511-1.517
Specific gravity 0.980-0.988
Other requirements Contains approx. 54% 10-isomer, 31% 2-isomer, 10% 3-isomer
ID Test IR