Product name:D-Panthenol

Expiry:2 years

Standard: USP40

Items of analysis

Specification

Appearance

A colorless or slightly yellowish,

viscous hygroscopic liquid

(may crystallized on storage)

Identification

A. Infrared absorption (197F)

B. The Sample solution: a deep blue color develops.

C. The Sample solution : a purplish red color develops.

Assay(on the anhydrous basis)

98.0%~102.0%

Water determination

≤ 1.0%

Specific optical rotation

+29.0° ~+31.5°

Limit of aminopropanol

≤ 1.0%

Residue on ignition

≤ 0.1%

Refractive Index(20℃)

1.495~1.502

Heavy metals

≤20ppm