What is L-Threonine CAS 72-19-5?

L-Threonine is an essential amino acid with the molecular formula C4H9NO3 and molecular weight 119.12 g/mol. It is normally supplied as a white crystalline powder and is soluble in water, with limited solubility in ethanol.

What is the main use of L-Threonine?

It is mainly used as a feed additive to balance amino acid profiles in compound feed, premixes, and animal nutrition. L-Threonine is a second limiting amino acid in swine diets and a third limiting amino acid in poultry diets, helping support protein deposition and growth.

How is L-Threonine produced and what grades are available?

Industrial L-Threonine is commonly produced by microbial fermentation. It is available in feed grade, food grade, and pharmaceutical or biochemical grades; feed-grade material is often specified at 98.5% minimum and supplied under standards such as GB/T 21979-2008.

What does the L in L-Threonine mean?

The L designation refers to the naturally occurring, biologically active stereoisomer of threonine. L-Threonine is the form used in proteins, animal nutrition, and biochemical systems, whereas DL-threonine contains both enantiomers.

How should L-Threonine be stored?

Store it in tightly sealed, moisture-resistant containers in a cool, dry, well-ventilated area. Keep the powder away from direct sunlight and excessive humidity, and maintain package integrity during storage and transport.

L-Threonine CAS 72-19-5

L-Threonine, CAS 72-19-5, an essential amino acid supplied as a white crystalline powder, is positioned for amino acid balancing in animal nutrition and feed formulations. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 72-19-5
Synonyms: L-Threonine; (2S,3R)-2-Amino-3-hydroxybutanoic acid
Einecs: 200-774-1
Molecular Formula: C4H9NO3
Grade: Feed grade / fermentation applications
Package: Standard export packaging

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Product Description

L-Threonine CAS 72-19-5 is an essential amino acid with EC 200-774-1 and molecular formula C4H9NO3.

Synonyms: (2S,3R)-2-amino-3-hydroxybutanoic acid.

CAS: 72-19-5.

Molecular formula: C4H9NO3.

It is supplied as a white crystalline powder.

It has a molecular weight of about 119.12 g/mol.

It is positioned as a feed additive for amino acid balancing in animal nutrition.

It is a second limiting amino acid in swine diets and a third limiting amino acid in poultry diets.

It helps support protein deposition and growth.

It is commonly produced by microbial fermentation.

Confirm purity, appearance, and related specifications for the chosen grade.

Check compliance with the target feed or application standard.

Store in tightly sealed, moisture-resistant containers in a cool, dry, well-ventilated area.

Use appropriate PPE and minimize exposure to humidity and direct sunlight.

Confirm packaging suitable for the powder form and order quantity, and follow the current SDS.

Every batch is checked for purity, appearance, and related specifications, with COA/TDS/SDS supplied per grade.

Confirm grade, packaging, and specification as required.

The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

For an RFQ, state the intended application, required grade, quantity, packaging, destination, and document needs.

FAQ - Technical & Supply Chain

Q:
What is L-Threonine CAS 72-19-5?

A: L-Threonine is an essential amino acid with the molecular formula C4H9NO3 and molecular weight 119.12 g/mol. It is normally supplied as a white crystalline powder and is soluble in water, with limited solubility in ethanol.
Q:
What is the main use of L-Threonine?

A: It is mainly used as a feed additive to balance amino acid profiles in compound feed, premixes, and animal nutrition. L-Threonine is a second limiting amino acid in swine diets and a third limiting amino acid in poultry diets, helping support protein deposition and growth.
Q:
How is L-Threonine produced and what grades are available?

A: Industrial L-Threonine is commonly produced by microbial fermentation. It is available in feed grade, food grade, and pharmaceutical or biochemical grades; feed-grade material is often specified at 98.5% minimum and supplied under standards such as GB/T 21979-2008.
Q:
What does the L in L-Threonine mean?

A: The L designation refers to the naturally occurring, biologically active stereoisomer of threonine. L-Threonine is the form used in proteins, animal nutrition, and biochemical systems, whereas DL-threonine contains both enantiomers.
Q:
How should L-Threonine be stored?

A: Store it in tightly sealed, moisture-resistant containers in a cool, dry, well-ventilated area. Keep the powder away from direct sunlight and excessive humidity, and maintain package integrity during storage and transport.

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