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　　Acetyl-L-carnitine hydrochloride, acetyl-L-carnitine hydrochloride, CAS No.: 5080-50-2, molecular weight 239.70. It is easily soluble in water, slightly soluble in ethanol and almost insoluble in ether. Do not discharge materials into the surrounding environment without permission of the government.

　　Physical property data:

　　Properties: white powder

　　Melting point (o C): 187-189

　　Specific rotation (o, C = 1, water): - 29

　　Solubility: easily soluble in water, slightly soluble in ethanol, almost insoluble in ether.

　　Nature and stability:

　　1. Stable under normal temperature and pressure, white crystalline powder, hygroscopic, very soluble in water, melting point 187-189, acetyl L-carnitine is the esterification of L-carnitine, which is easy to deliquescence and turn yellow.

　　2. It is irritating to eyes, respiratory system and skin. If it is used in large quantities, it should wear appropriate protective clothing. In case of contact with eyes, it should be washed with a large amount of water immediately and asked for medical treatment.

　　Storage method:

　　Keep away from light at 2-8 ℃, in a cool and dry place, sealed and stored

　　Purpose:

　　1. Medical and health products; Food additives.

　　2. biochemical research.