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  • Chemical Name:L-Threonine
  • CAS No.:72-19-5
  • MF: C4H9NO3
  • MW:119.12
  • Purity: >99% or As customer requested
  • Color: Yellow
  • Solubility: H2O: 50 mg/mL
  • Product Categories: Amino Acids; Biochemistry; Nutritional Supplements; L-Amino Acids; Amino Acids; APIs
  • Test method: HPLC


What is Threonine?

Threonine is a fundamental amino corrosive. Amino acids are the structure hinders the body uses to make proteins. The “fundamental” amino acids are those that can’t be made by the body and should be gotten from the eating regimen.

Individuals use threonine amino acid for conditions, for example, a muscle control jumble set apart by compulsory developments and muscle snugness (spasticity), numerous sclerosis (MS), acquired messes set apart by shortcoming and solidness in the legs (familial spastic paraparesis or FSP), and Lou Gehrig’s illness (amyotrophic sidelong sclerosis or ALS), yet there is no decent logical proof to help these purposes.

Basic information  

Product Name: L-Threonine
CAS: 72-19-5
MW: 119.12
EINECS: 200-774-1
Product Categories: Amino Acids; Biochemistry; Nutritional Supplements;L-Amino Acids; APIs
Chemical Structure


Chemical Properties    

Melting point  256 °C (dec.) (lit.)
alpha  -28.4 º (c=6, H2O)
Boiling point  222.38°C (rough estimate)
density  1.3126 (rough estimate)
refractive index  -28 ° (C=6, H2O)
storage temp.  2-8°C
solubility  H2O: 50 mg/mL
form  powder
pka 2.09(at 25℃)
color  Yellow
PH 5-6 (100g/l, H2O, 20℃)
optical activity [α]20/D 28.5±0.5°, c = 5% in H2O
Water Solubility  90 g/L (20 ºC)
JECFA Number 2119
Merck  14,9380
BRN  1721646
Stability: Stable. Incompatible with strong oxidizing agents.
Usage And Synthesis

Chemical Properties: White with thorhombic or crystalline powder. Odorless, taste sweet 

Threonine Uses:

Amyotrophic lateral sclerosis (Lou Gehrig’s disease). Taking 2 grams to 4 grams of threonine amino acid daily for up to 12 months does not seem to slow the progression of ALS or reduce symptoms. There is also some evidence that threonine might actually worsen lung function in people with ALS.

Familial spastic paraparesis, a hereditary disorder. Early research suggests that taking 1.5 grams to 2 grams of high quality l-threonine by mouth three times daily might improve some symptoms in people with familial spastic paraparesis. But the improvement does not seem to be very significant.

Multiple sclerosis. Early research suggests that taking 2.5 grams of threonine amino acid by mouth three times daily for 8 weeks does not reduce muscle stiffness (spasticity) in people with MS.

Spinal spasticity, a movement disorder caused by spinal cord damage. Early research suggests that taking 2 grams of threonine by mouth three times daily modestly decreases muscle contractions in people with spinal spasticity caused by spinal cord injury.

What could we do?

a) Free sample can be supplied.

b) Guide our clients by professional knowledge and teach them how to use our product after sales.

c) Accept SGS,BV any other third-party inspection before loading.

d) High quality best price Guaranteed.

MSDS: MSDS available.

COA: COA can be available if you send us inquiry.

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