Shijiazhuang Shixing Amino Acid Co.,Ltd.

L-TRYPTOPHAN

[Product Name]: L-TRYPTOPHAN
[Other Name]: L-TRP, L-2-AMINO-3-INDOLEPROPIONIC ACID, L-ß-3-INDOLYLALANINE
[Molecular Formula]: C₁₁H₁₂N₂O₂
[Structural Formula]:

[Molecular Weight]: 204.23
[CAS]: 73-22-3
[EINECS]: 200-795-6
[Description]: White crystals or crystalline powder, slightly bitterness. Melting point at 289 ºC. Slightly soluble in water, insoluble in ethanol and in ether.
[Standard]: Pharma Grade USP32, Food Grade FCCV, Feed Grade,or according to buyer's requirements.

Item	Pharma Grade (USP32)	Food Grade (FCCV)	Feed Grade
Appearance	White crystalline powder	White crystalline powder	Light yellow powder
Assay(on dry matter)	98.5~101.5%	98.5~101.5%	98.0% MIN
Specific rotation	-29.4º~-32.8º	-30.0º~-33.0º
pH	5.5~7.0	--
Loss on drying	0.3% MAX	0.3% MAX	1.0% MAX
Residue on ignition	0.1% MAX	0.1% MAX	0.5% MAX
Chloride	0.05% MAX	--	--
Sulfate	0.03% MAX	--	--
Iron	0.003% MAX	--	--
Heavy metals	0.0015% MAX	--	--
Lead	--	5mg/kg MAX	--

Usage: It is an essential amino acids, generally used as a nutritional supplement.
Packing: In kraft paper bags or in fiber drum 25KG net each.
Transport and Storage: Handle with cares to avoid damaging the package, protect them from sunshine or rain. Don't transport it with poisonous or harmful goods. Stored in shaded, cool and dry places.

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