L-Carnitine, CAS No.: 541-15-1
Product Name: L-Carnitine
Synonyms: 3-Hydroxy-4-(trimethylammonio)butanoate; Vitamin BT
Molecular Formula: C7H15NO3
Molecular Weight: 161.20
L-Carnitine CAS No.: 541-15-1
L-Carnitine Properties: white crystal or crystalline powder with slight special odor; high hygroscopicity. Easily soluble in water, ethanol and alkaloid solution; almost insoluble in acetone or ethyl acetate.
L-Carnitine Quality Standard: USP, EP, G8
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Item
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USP
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EP
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GB
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Identification
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chemial or IR method
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chemial or IR method
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chemial or IR method
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Specific rotation
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-29.0 - -32.0
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-29.0 - -32.0
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-29.0°- -32.0
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pH-value
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5.5-9.5
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6.5-8.5
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5.5-9.5
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Moisture
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4.0% max.
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1.0% max.
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4.0% max.
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Residue on ignition
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0.5% max.
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0.1% max.
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0.5% max.
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Cyanide
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-
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-
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should not be found
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Chloride
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0.4% max.
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200ppm max.
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0.4%
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Sulphate
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-
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300ppm max.
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-
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Sodium
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0.1% max.
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-
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0.1%
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Potassium
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0.2% max.
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-
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0.2%
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Heavy metal
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20ppm max.
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10ppm max.
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20 ppm max.
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Arsenic
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2ppm max.
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-
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2 ppm max.
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Solution clarity
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-
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colorless transparent
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-
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Related substances
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-
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impurity A 0.5% max
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-
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other impurity 0.1%max.
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||
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Residual acetone
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-
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-
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0.1% max.
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Assay
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100±3%
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100±2%
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100±3%
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