Thymol USP

Test Specification……..USP
Characters It occurs as colorless, often large crystals, or white crystalline powder.

Test (A)

Test (B)


a) Melting point : 48 °C to 51 °C.

b) Infrared absorption spectrophotometry.

Solubility Very slightly soluble in water, freely soluble in alcohol, in chloroform, in ether, and in olive oil, soluble in glacial acetic acid and in fixed and volatile oil.
Acidity To 5 mL of the filtrate add 0.05 mL of methyl red solution R and 0.05 mL of 0.01 M sodium hydroxide. The solution is yellow.
Limit of non volatile residue Maximum 0.05 %
Residual Solvents Meets the requirement.
Assay Not less than 99.0% and not more than 101.0%

Shelf life, Storage and Packing

It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.


GLP, cGMP (FDA) Approved, ISO 9001, ISO 14001, ISO 45001, ISO 17025, ISO 22000, FSSC 22000, FSSAI, Halal and Kosher certified.
We observe WHO Good manufacturing practice and Good laboratory practice.

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