L-Pyroglutamic acid CAS 98-79-3 CAS NO.98-79-3

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It mainly contents 98.5%-101.0%. Specific rotation is -10.50 degree to -12.30 degree. Chloride cl- is equal or less than 0.02%. Sulphate SO42 is equal or less than 0.02%. Heavy metal is equal or less than 10 ppm. Residue is equal or less than 0.2%. Loss on drying is equal or less than 0.5%. Iron is equal or less than 10ppm. PH value is 2.0 to 2.5.

Application: it has strong moisturizing function with strong skin permeability. As an additive with high nutritive and easily absorbed, it opsonizes skin and effects as moisturizer.

English Name: L-Pyroglutamic acid    CAS No.: 98-79-3

The scientific name (structure) of L-Pyro glutamic acid is L-2-pyrrolidone-5-carboxylic acid. The optical rotation is [a]_D=-11.50^o. It is soluble in water, ethanol, acetone and glacial acetic acid. At 25 degree Celsius, solubility in water is more than 40 g.

Standard: Aji92/USP24

Properties: it is colorless crystal with melting point 159-162 degree Celsius. It is soluble in water, alcohol, acetone and acetic acid. It is slightly soluble in ethyl acetate and insoluble in ether.

Main Specification: It mainly contents 98.5%-101.0%. Specific rotation is -10.50 degree to -12.30 degree. Chloride cl- is equal or less than 0.02%. Sulphate SO42 is equal or less than 0.02%. Heavy metal is equal or less than 10 ppm. Residue is equal or less than 0.2%. Loss on drying is equal or less than 0.5%. Iron is equal or less than 10ppm. PH value is 2.0 to 2.5.

Application: it has strong moisturizing function with strong skin permeability. As an additive with high nutritive and easily absorbed, it opsonizes skin and effects as moisturizer.

Packing: 25 kg/barrel

Storage: seal and store in dry location