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D-Valine

Description Valine Uses Chemical Properties Production methods References
D-Valine
D-Valine structure
CAS No.
640-68-6
Chemical Name:
D-Valine
Synonyms
Val;D-VAL;D-VALINE;NSC 20654;Valine, D-;H-D-VAL-OH;(R)-(-)-VALINE;D-Valine, 98+%;D-Valine (9CI);D-Valine, 97+%
CBNumber:
CB7291278
Molecular Formula:
C5H11NO2
Formula Weight:
117.15
MOL File:
640-68-6.mol

D-Valine Properties

Melting point:
>295 °C (subl.)(lit.)
alpha 
-27.5 º (c=5, 5N HCl)
Boiling point:
213.6±23.0 °C(Predicted)
Density 
1.2000 (estimate)
refractive index 
-27 ° (C=8, 6mol/L HCl)
storage temp. 
Store at RT.
solubility 
56 g/L (20°C)
pka
2.37±0.10(Predicted)
form 
Crystalline Powder
color 
White to off-white
optical activity
[α]23/D 32.0 to 24.0°, c = 8 in 6 M HCl
Water Solubility 
56 g/L (20 ºC)
BRN 
1721135
InChIKey
KZSNJWFQEVHDMF-SCSAIBSYSA-N
CAS DataBase Reference
640-68-6(CAS DataBase Reference)
NIST Chemistry Reference
2-Amino-3-methylbutanoic acid(D)(640-68-6)
EPA Substance Registry System
D-Valine(640-68-6)
SAFETY
  • Risk and Safety Statements
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  22-24/25-36-26
WGK Germany  3
RTECS  YV9360000
TSCA  Yes
HS Code  29224995

D-Valine price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 855987 D-Valine ≥98% 640-68-6 5g $30.5 2018-11-13 Buy
Sigma-Aldrich 855987 D-Valine ≥98% 640-68-6 25g $99.5 2018-11-13 Buy
TCI Chemical V0012 D-Valine >98.0%(T) 640-68-6 1g $23 2018-11-22 Buy
TCI Chemical V0012 D-Valine >98.0%(T) 640-68-6 25g $130 2018-11-22 Buy
Alfa Aesar A18894 D-Valine, 98+% 640-68-6 5g $29.2 2018-11-13 Buy

D-Valine Chemical Properties,Uses,Production

Description

D-valine is the D-form of valine, being the non-proteinogenic isomer of valine. It can be supplemented into the cell culture for selectively inhibition of cell proliferation through inhibiting cells that are deficient in the enzyme D-amino acid oxidase. It has also been used to inhibit fibroblast growth while allowing the selective growth of epithelial cells. 

Valine

Valine is one kinds of the essential amino acids for human being with the requirement of adult males being 10mg/(kg ? d) (FAO/WHO1973). Being lack of this product can cause neurological disorders, reduction of developmental ability as well as anemia.
Valine is one of the 20 amino acids that form protein with its chemical name being 2-amino-3-methyl-butyric acid. It belongs to branched chain amino acids and is one of the eight kinds of essential amino acids and carbohydrate-producing amino acids of human body. It works together with the other two high-concentration amino acids (leucine and isoleucine) to promote the normal growth of body, tissue repair, regulate blood sugar, and provide the energy needed. When participating in intense physical activity, valine can provide extra energy to the muscles for producing glucose in order to prevent of muscle weakness. It also helps remove excess nitrogen (potentially toxic) from the liver, and transport nitrogen to all of the rest parts of the body.
Valine is an essential amino acid, which means that the human body itself cannot synthesize themselves so that it must be replenished through dietary sources. Its natural food sources include cereals, dairy products, mushrooms, mushrooms, peanuts, soy protein and meat. D-Valine is also found in some actinomyces (such as valeriana). While most people can get sufficient quantities of D-valine from the diet, however, there are still many cases about valine deficiency. Upon being lack of sufficient valine, rats get limb tremors due to disorder of the central nervous system as well as ataxia. Through dissecting slices of brain tissue, it was found about the phenomenon of the red nucleus cell degeneration. Owing to the liver function damage of patients with advanced cirrhosis of the liver, hyperinsulinemia is easy to occur, resulting in the reduction of branched chain amino acids in the blood. The ratio of branched-chain amino acids over aromatic amino acids decreases from 3.0-3.5 (normal body) to 1.0-1.5. It is common for using injection of branched chain amino acids such as valine in the treatment of liver failure, and the damage of alcoholism and drug abuse on these organs.

Uses

1. D-valine can be used for the synthesis of newly efficient pesticide: pyrethroids permethrin and chlorofluorocarbons amyl because of its own biochemical characteristics. The produced valine insecticide permethrin is a broad-spectrum and promising insecticide acaricide which can have effects of touch-killing and stomach poisoning through inhibiting the activity of related enzyme systems of insects. In this way, it can be used for effectively controlling of major pests including Lepidoptera and Diptera in corps such as cotton, fruit trees, and vegetables. D-valine is also widely used in biomedical research. For example, it can be used to inhibit the growth of fibroblasts, and be applied to the studies on its influence on the morphology and function of pulmonary artery endothelial cells. D-valine are also important raw materials as chiral drugs for example it may be used for the synthesis of antineoplastic drugs, anti-diabetes and its complications drugs. With the expansion of the applications fields as well as market demanding of D-valine, the preparation of D-valine will become a hot research field on amino acid.
2. D-Valine is an important organic chiral source which is mainly used in fields such as chiral pharmaceuticals, chiral additive, and chiral auxiliary and other areas. It can also be used as the chiral source of chiral synthesis in the pharmaceutical industry. As an optically active organic acid, it plays an irreplaceable role in the asymmetric synthesis of certain chiral compounds. It is currently mainly used for the production of new broad-spectrum antibiotic, D-valinol, and valine protective agent during the process of peptide synthesis.
3. D-valine is the intermediates for fluvalinate.
4. It is used as a pharmaceutical raw materials and pharmaceutical intermediates, and can also be used for synthetic sweeteners Alatan.
5. It can also be used for biochemical research.
The above information is edited by the Chemicalbook of Dai Xiongfeng.

Chemical Properties

White crystal, m.p.> 295 °C (sublimation), [α] 25 = 27.35°; it is soluble in water and very slightly soluble in ethanol.

Production methods

1. DL-Acetyl-methionine is used as the raw material. It undergoes acylase splitting, and further hydrochloric acid acidification to have D-valine crystals precipitated; refined product is finally obtained through recrystallization.
2. The preparation method is to use 2-isopropyl-acetyl ethyl to react with benzene diazonium to get corresponding hydrazine compound, and then further reduce it to valine in zinc-ethanol solution and finally go through chemical or biological split.

References

http://www.sigmaaldrich.com/catalog/product/sigma/v1255?lang=en&region=US
Gilbert, S. F., and B. R. Migeon. "D-valine as a selective agent for normal human and rodent epithelial cells in culture." Cell 5.1(1975):11.
Hongpaisan, J. "Inhibition of proliferation of contaminating fibroblasts by D-valine in cultures of smooth muscle cells from human myometrium. " Cell Biology International 24.1(2000):1.

Chemical Properties

white to off-white crystalline powder

Uses

D-Valine is an isomer of the essential amino acid L-Valine. D-Valine has been used as a selective agent in epithelial cells in culture since it inhibits cells that lack the enzyme D-amino acid oxidase . D-Valine has also been shown to inhibit proliferation of contaminating fibroblasts in smooth muscle cells from human myometrium. D-Valine solution showed tumor growth inhibition and improvements of the nutritional status in AH109A hepatoma-bearing rats.

Definition

ChEBI: The D-enantiomer of valine.

D-Valine Preparation Products And Raw materials

Raw materials

Preparation Products


D-Valine Suppliers

Global( 406)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Taizhou Tianhong Biochemistry Technology Co., Ltd.
0523-86132544
0523-86201489 sales@thbiochem.com CHINA 304 60
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 sales@capotchem.com China 19918 60
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 Abel@chembj.com CHINA 3194 55
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 21671 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20672 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sale@mainchem.com CHINA 32447 55
Hangzhou FandaChem Co.,Ltd.
0086 158 5814 5714 (Mobile; WhatsApp; Telegram)
+86-571-56059825 fandachem@gmail.com CHINA 2909 55
Shanghai Yingrui Biopharma Co., Ltd.
+86-21-33585366 E-mail:sales03@shyrchem.com
+86-21-34979012 sales03@shyrchem.com CHINA 739 60
ATK CHEMICAL COMPANY LIMITED
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 ivan@atkchemical.com CHINA 24191 60
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 30001 58

View Lastest Price from D-Valine manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-04-02 D-Valine Manufacturer / In stock factory
640-68-6
US $1.00 / KG 1KG High quality manufacturer TOP 3 largest production factory in China Chemwill Asia Co.,Ltd.
2018-07-30 D-Valine
640-68-6
US $100.00 / KG 1KG 99% Customized career henan chemical co

D-Valine Spectrum


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