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D-Tryptophan
D-Tryptophan
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.
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.
Industrial field pharmaceutical
WUHAN YUANCHENG GONGCHUANG TECHNOLOGY CO., LTD ----SALES DEPARMENT
Phone 0086-027-88040191
Fax
Homepage -
E-mail ycgl16@yccreate.com
Address 496#zhongshan Road, Wuchang, Wuhan, China
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