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Online Edition: "Specifications for Flavourings"

Flavouring 2-Naphthalenethiol
Synonym(s) 2-Mercaptonaphthalene;2-Thionapthol;2-Naphthyl mercaptan
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 2-Naphthalenethiol
JECFA number 531
CAS number 91-60-1
FEMA number 3314
COE number 2330
FLAVIS number
Molecular weight 160.23
Chemical formula C10H8S
Physical form/odour crystals with disagreeable mercaptan-like odour
Solubility slightly soluble in water; soluble in alcohol and ether
Solubility in ethanol
Boiling point (°C) 210.5° (100mm Hg)
Assay min % 98%
Acid value max
Refractive index NA
Specific gravity NA
Other requirements mp: 79-81°; Decomposes at 285°
ID Test MS