L-Tryptophan

[Name]: L-Tryptophan, L-Trp
[Structural formula]:
[Molecular Formula]: C₁₁H₁₂N₂O₂
[Molecular weight]: 204.23
[Properties]: White crystals or crystalline powder,slightly bitterness. Slightly soluble in water, insoluble in ethanol and in ether.
[Usage]: L-Tryptophan is one of the essential amino acids, mainly used as food additives, and formatting complex amino acid perfusion and preparation
Quality standard as FEED GRADE, FCC IV, USP23 or discuss

Items	Feed Grade	FCC IV	USP23
Assay(on dry basis)	98.0% MIN.	98.5% ~ 101.5%	98.5%-101.5%
Appearance	Light yellow powder	--	--
Specific rotation	--	-30.0-33.0	-29.4-32.8
Chloride(Cl)	--	--	0.05% MAX
Sulfate (SO₄)	--	--	0.03% MAX
Iron(Fe)	--	--	0.003% MAX
Heavy metals (Pb)	--	20ppm MAX	15ppm MAX
Arsenic	--	1.5ppm MAX	1.5ppm MAX
Loss on drying	1.0% MAX.	0.3% MAX	0.3 % MAX
Residue on ignition	0.5% MAX.	0.1% MAX	0.1 % MAX
pH value	--	--	5.5 ~ 7.0
Bulk Density	0.35-0.45	--	--

[Packing]: In kraft paper bags or in fiber drum 25KG net each.
[Transport and Storage]: Handle with cares to avoid damaging the package, protects them from sunshine or rain. Don't transport it with poisonous or harmful goods. Stored in shaded, cool and dry places.

Bioaxis Chemicals Co., Ltd
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