Online Edition: "Specifications for Flavourings"

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Flavouring Isobutylamine
Synonym(s) 1-Amino-2-methylpropane
Latest JECFA evaluation 2005 (Session 65)
Status of specification Full
Chemical name 2-Methylpropylamine
JECFA number 1583
CAS number 78-81-9  
FEMA number 4239
COE number -
FLAVIS number 11,002  
Molecular weight 73.14 
Chemical formula C4H11N  
Physical form/odour Colourless to yellow liquid; Fishy cheesy aroma 
Solubility Soluble in water 
Solubility in ethanol Soluble 
Boiling point (°C) 68°
Assay min % 95%
Acid value max -
Refractive index 1.391-1.397
Specific gravity 0.731-0.737
Other requirements -
ID Test MS