Manufacturers List

L-Threonine

L-Threonine, CAS No.72-19-5, a essential amino acid amino acid manufactured through fermentation process. L-threonine function: a key component of collagen, elastin and enamel proteins. It aids in proper fat metabolism in the liver; nutrients are more readily absorbed when threonine is present. L-threonine also helps the digestive and intestinal tracts function more smoothly. Uses: L-Threonine is used in animal feed, poultry feed and food nutrition supplements. In cosmetics and personal care products, the function as hair conditioning agents and skin conditioning agents – miscellaneous. 

Kosher Halal ISO 9001 BRC
CAS No.
72-19-5
HS Code
292250

Specifications

L-Threonine food grade Specification

ITEM STANDARD
Apperance White  Crystalline powder
Identification Meets the requirements
Assay  % 98.5-101.5
Lead ≤ mg/kg 5
Loss on Drying ≤ % 0.2
Specific rotation[a]D20° -26.5°~ -29.0°
Residue on Ignition ≤ % 0.1

L-Threonine feed grade Specification

ITEM STANDARD
Appearance White or sandy beige crystal powder, no obvious purity
Identification Corresponds to standard
C4H9NO3 Content(dry basis) ≥% 98.5
Specific Rotation [a] D20 -25.0°- -29.0°
Loss on drying ≤ % 0.5
Residue on Ignition  ≤% 0.5
Arsenic (As AS) ≤Mg/Kg 2.0
Heavy Metals(As Pb) ≥ Mg/Kg 30

Product /
Packaging

L-Threonine packaging

Other
Conditions

MOQ

Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine L-Threonine with other food ingredients in one shipment to save on freight.

Samples

We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.

Lead Time

Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.

Documents

You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.

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