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| D-Tryptophan |
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| D-Tryptophan |
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D-Tryptophan
Molecular formula: C11H12N2O2
Molecular weight:204.23
CAS No.:153-94-6
¡¼Description¡½White or yellowish crystal powder, taste slightly sweet.
¡¼Specification¡½
Item
Limit
Appearance
White or yellow crystalline powder
Assay
99.0%~101.0%
Specific Rotation [¥á]D20
+30.5¡Æ~ +32.5¡Æ
Transmittance
¡Ã95.0%
PH
5.5~ 6.4
Loss on Drying
¡Â0.2%
Residue on Ignition
¡Â0.1%
Chloride [Cl-]
¡Â0.02%
Sulfate [SO42-]
¡Â0.02%
Ammonium [NH4+]
¡Â0.02%
Heavy Metals [Pb]
¡Â10ppm
Iron [Fe]
¡Â10ppm
Arsenic [As2O3]
¡Â1ppm
Other Amino Acids
Conforms
¡¼Function¡½D-Tryptophan is important nutrition product, it is be used as prevention of nicotinic acid deficiency in medicine.
¡¼Package¡½25kg net weight cardboard drum lined with PE bag, or according to the customer`s demand.
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 |
D-Tryptophan
Molecular formula: C11H12N2O2
Molecular weight:204.23
CAS No.:153-94-6
¡¼Description¡½White or yellowish crystal powder, taste slightly sweet.
¡¼Specification¡½
Item
Limit
Appearance
White or yellow crystalline powder
Assay
99.0%~101.0%
Specific Rotation [¥á]D20
+30.5¡Æ~ +32.5¡Æ
Transmittance
¡Ã95.0%
PH
5.5~ 6.4
Loss on Drying
¡Â0.2%
Residue on Ignition
¡Â0.1%
Chloride [Cl-]
¡Â0.02%
Sulfate [SO42-]
¡Â0.02%
Ammonium [NH4+]
¡Â0.02%
Heavy Metals [Pb]
¡Â10ppm
Iron [Fe]
¡Â10ppm
Arsenic [As2O3]
¡Â1ppm
Other Amino Acids
Conforms
¡¼Function¡½D-Tryptophan is important nutrition product, it is be used as prevention of nicotinic acid deficiency in medicine.
¡¼Package¡½25kg net weight cardboard drum lined with PE bag, or according to the customer`s demand.
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pharmaceutical |
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| There are no existing companies to distribute selected chemical product |
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