DL-Threonine CAS 80-68-2

DL-Threonine, Promotion Season Now in Store and Free Sample for Testing with Factory Price

Chemical Name: DL-Threonine
CAS No.: 80-68-2
Molecular Fomula: C4H9NO3
Molecular weight: 119.12
Appearance: White to beige Powder
Sample: Available

DL-Threonine CAS 80-68-2

Description of DL-Thr

Threonine (abbreviated as Thr or T) encoded by the codons ACU, ACC, ACA, and ACG is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH+ 3 form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO− form under biological conditions), and an alcohol containing side chain, classifying it as a polar, uncharged(at physiological pH) amino acid. It is essential in humans, meaning the body cannot synthesize it, and must be ingested in our diet. Threonine is synthesized from aspartate in bacteria such as E. coli.
Threonine sidechains are often hydrogen bonded; the commonest small motifs formed are ST turns, ST motifs (often at the beginning of alpha helices) and ST staples (usually at the middle of alpha helices).

Basic Info of DL-Threonine

Basic Info

Chemical Name



DL-Theronine;Radish Seed;THREONINE;DL-Threonine;rac-Threonine;Expand



Molecular Formula


Molecular Weight






Safety Info

Safety Statements


HS Code


WGK Germany


Risk Statements


Hazard Codes



Appearance & Physical State

white crystalline powder



Boiling Point

345.8ºC at 760 mmHg

Melting Point


Flash Point


Refractive Index


Water Solubility

200 g/L (25 ºC)

Storage Condition

Store at RT.

Numbering system

MDL number


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What is DL-Thr?

  • With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is DL-Threonine which has developed particularly rapidly in recent years. Do you know about DL-Threonine?
  • The official answer:DL-Thr is a chemical with the molecular formula C4H9NO3 and a molecular weight of 119.12.

What’s the application of DL-Thr?

  • Threonine is a nutritional fortifier for feeds and an essential amino acid for the growth of livestock, poultry and fish. It is mainly added to feeds based on wheat, barley and other grains.


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