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D-Tryptophan 153-94-6
D-Tryptophan 153-94-6

Pharmaceutical Use
D-Tryptophan 153-94-6

Molecular formula: C11H12N2O2 Molecular structure:
Molecular weight:204.23
CAS No.:153-94-6
¡¼Description¡½White or yellowish crystal powder, taste slightly sweet.
¡¼Specification¡½

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

¡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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