DL-Menthol CAS:1490-04-6 CAS NO.1490-04-6

testing items

standard requirements

testing result

character

colorless transparent prismatic or acicular crystal, aroma of asia natura menthol feature.

qualified

melting point

42°c -- 44°c

42.2°c

specific rotation(20°c)

-50° -- -49°

-49.45°

non-volatile matter

≤0.05%

0.008%

arsenic content

≤0.0002%

0.0001%

heavy metals ( pb)

≤0.0005%

0.00027%

solubility

add 1g volume sample to 5ml volume of ethanol 90%(v/v), obtaining a settled solution.

qualified

levo-menthol content

95.0%~105.0%

99.2%

main ingredients

levo-menthol,menthone,dl-isomenthol, pinene etc.

qualified