(S) - 1, 2, 3, 4-4 h - 1 - naphthoic acid/(S) - 1, 2, 3, 4 - tetrahedro - naphthoic acid

Chinese name: (S) - 1, 2, 3, 4-4 h - 1 - naphthoic acid

English name: (S) - 1, 2, 3, 4 - tetrahedro - naphthoic acid

CAS: 85977-52-2

Quality indicators (Specification)

Inspection items the items

Standard specification

Characteristics of the Appearance

White or light yellow crystalline powder White or pale yellow crystalline powde

Melting point Melting point

54.0 ~ 58.0 ℃

Than the curl Specific rotation

59.0 ~ 63.0 ° (c = 1, Ben)

Isomer Isomers

Less than 1.0% Less than 1.0%

Content Assay shall Not be less than 98.0% Not less than 98.0%