L-Aspartic acid 4-methyl ester HCl CAS Number : 16856-13-6 EEC No: 2173989 Synonyms: (S)- 2-Aminosuccinic acid 4-methyl ester hydrochloride; β-methyl L-aspartate hydrochloride; L-aspartic acid β-methyl ester hydrochloride Formula: H3COCOCH2CH(NH2)COOH HCl; C5H9O4HCl Molecular Weight: 183.59 Description: A white to off-white powder that is soluble in water , alcohol. Melting point: 191 to 193 ° C Packaging: 25 kg cardboard drums with two PE liner bags or as otherwise agreed upon. Shipping & Storage: Low humidity conditions are recommended to minimize caking/degradation potentials.Keep container tightly closed and inner bag sealed.Stored in a dry ambient environment. Shelf life: The shelf life of this material is 4 years from the date of manufacture if stored in ambient room temperature conditions. Product should be reevaluated if it exceeds expiration date. Risk phrases: not applicable Safety phrases: Avoid contact with skin and eyes Use: Pharmaceutical Intermediate. Specifications: Main items Appearance White crystalline powder Assay min 98.5% Loss on drying max 0.5% Specific Rotation [α]D20 : +15.9 +16.9(C=1,CH3OH)