L-Threonine

[Name]: L-Threonine
[Structural formula]: CH₃CH(OH)CH(NH₂)COOH
[Molecular Formula]: C₄H₉NO₃
[Molecular weight]: 119.12
[Properties]: White crystals or crystalline powder,odorless,slightly sweet. Freely soluble in water, practically insoluble in ethanol and in ether.
[Usage]: L-Threonine 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	--	-26.5 º ~ -29.0 º	-26.7 º ~ -29.1 º
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	0.2% MAX
Residue on ignition	0.5% MAX	0.1% MAX	0.1% MAX
PH value	--	--	5.0 ~ 6.5

[Packing]: In kraft paper bags or in fiber drum 20KG 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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