Home » Products » Amino Acid » Amino Acid Cas No.:72-19-5 L-Threonine

Amino Acid Cas No.:72-19-5 L-Threonine

Cas No.:72-19-5
Chemical Formula: C4H9NO3
Molecular Weight：119.12

HS Code:292250

MOQ:500kg

Model:
SY-901007-1
Brand:
SYBT
Code:
292250

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Product Description

Product Description
Threonine is an α-amino acid that is common in many proteins and together with serine and tyrosine is one of three proteinogenic amino acids bearing an alcohol group. Like serine,
Threonine is sometimes in substantial concentrations in the outer regions of soluble proteins due to its hydrophilic nature. With an easily removed hydrogen on the hydroxyl side chain, threonine is often a hydrogen donor in enzymes.

Specification
Test Item	Specification	Test Method
Appearance	White crystals or crystalline powder	Visual
Assay	98.5%~101.5%	USP32
pH	5.0~6.5	USP32
Loss on drying	Maximum 0.2%	USP32
Residue on ignition	Maximum 0.4%	USP32
Specific rotation[a]D20	-26.7°~-29.1°	USP32
Iron	Maximum 30ppm	USP32
Chloride	Maximum 0.05%	USP32
Heavy Metals	Maximum 15ppm	USP32
Sulfate	Maximum 0.03%	USP32
Total Plate count (cfu/g)	Maximum 1000 cfu/g	In-house
Moulds and yeast	Maximum 100 cfu/g	In-house
Escherichia coli	Negative	In-house
Salmonella	Negative	In-house

Application

L-Threonine is used as pharmaceutical raw material or food supplement.

Packing
25kg/Drum; or according to customers' requirements.

Storage
Storage conditions: store in a well-closed container away from moisture and direct sunlight.

Shelf Life
2 years if sealed and stored properly.

FAQ
Q:What's the Minimum Order Quantity?
A:500kg

Q: How to Get Sample?
A: Sample within 20g could be sent for free once buyer's DHL/FEDEX account is advised for freight collect or courier cost is paid. The courier cost could be deducted when bulk order is placed.

Q: What is Lead Time?
A: Generally, cargo could be loaded on ship in about two weeks after the date of receiving prepayment or L/C. Sometimes one week earlier or later.

Cas No.:72-19-5 L-Threonine Amino Acid food supplement

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