DL-Methionine & DL-Valine & DL-Threonine,China TOP price supplier

1. DL-Methionine
CAS No: 59-51-8
Molecular formula: C5H11NO2S
Molecular weight: 149.21

Product standard: AJI-92/97 Version, EP-4 Version, USP-24/26 Version, FCC-4 Version

Properties: White flaky crystal or crystalline powder. Has special smell. Slight sweet taste. Melting point: 281 degree C(decompound). 10% aqueous solution's pH value is 5.6-6.1. No optical rotation, stable to heat and air. Unstable to strong Acid, can cause the demethylation. Soluble in water(3.3G/100ml, 25degree C), diluted acid and diluted alkali solution. Very hard to dissolve in ethanol, almost does not dissolve in ether.

Use: DL-Methionine is one of the basic units for composing the protein, is the only sulfur bearing amino acid among the essential amino acids, it participated in the transmethylation interior the animal body, the phosphorus metabolism and the adrenalin, choline and creatine synthesis, it also is the raw material of the protein and cystine synthesis. Methionine is unable to synthesize in the animal body, must take in from food. Adds it in the feed, can promote the poultry to grow, increase lean Meat quantity and reduce the feeding cycle.

2. DL-Valine
Alias: DL- α - amino isovalerate
CAS No: 516-06-3
Molecular formula: C5H11NO2
Molecular weight: 117.15

Product standard: AJI-92 Version, USP-24 Version, FCC-4 Version.

Use: Nutrient supplement, mainly used for seasoning. In the pharmacy, it is used as the acid making agent(hyperacidity), muscle nutritional disorder therapeutic agent, antidote, etc. Also used as the amino acids synthesis raw material, such as the threonine, etc.; Can be used as the perfume as well.

3. DL-Threonine
Alias: DL-α -amino-β -hydroxy butanoic acid
CAS No.: 80-68-2
Molecular formula: C4H9NO3
Molecular weight: 119.12

Properties: White crystal or crystalline powder. Smell-less, melting point: ~245 Degree C(decompound). No optical rotation. The chemical properties are stable. Soluble in water(20.1g/100ml, 25 Degree C), the aqueous solution has sweet taste and it is tasty and refreshing. Hard to dissolve in methanol, ethanol(0.07g/100ml, 25degree C), acetone, etc.

DL-Threonine's physiological effectiveness is one-half of the L-Threonine. When it is deficient may cause inappetence, fatty liver, etc symptoms.

Use: Nutrient supplement.