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D-Alanine

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D-Alanine Basic information

Product Name:
D-Alanine
CAS:
338-69-2
MF:
C3H7NO2
MW:
89.09
EINECS:
206-418-1
Mol File:
338-69-2.mol
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D-Alanine Chemical Properties

Melting point:
291 °C (dec.)(lit.)
alpha 
-14.5 º (c=10, 6N HCl)
Boiling point:
212.9±23.0 °C(Predicted)
Density 
1.4310 (estimate)
refractive index 
-14 ° (C=2, 6mol/L HCl)
storage temp. 
Store at RT.
solubility 
H2O: soluble
pka
2.31±0.10(Predicted)
form 
Crystalline Powder or Crystals
color 
White to off-white
Water Solubility 
155 g/L (20 ºC)
Merck 
14,204
BRN 
1720249
CAS DataBase Reference
338-69-2(CAS DataBase Reference)
NIST Chemistry Reference
D-Alanine(338-69-2)
EPA Substance Registry System
D-Alanine (338-69-2)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
24/25-36-26
WGK Germany 
3
TSCA 
Yes
HazardClass 
IRRITANT
HS Code 
29224995

MSDS

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D-Alanine Usage And Synthesis

Chemical Properties

White Crystalline Powder

Definition

ChEBI: The D-enantiomer of alanine.

Purification Methods

Crystallise alanine from H2O or aqueous EtOH, i.e. crystallise it from 25% EtOH in water, or recrystallise it from 62.5% EtOH, wash it with EtOH and dry it to constant weight in vacuo over P2O5. [Gutter & Kegeles J Am Chem Soc 75 3893 1953, Walsh J Biol Chem 264 2394 1989.] 2,2'-Iminodipropionic acid is a likely impurity. [Beilstein 4 IV 2480. 2481.]

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Alfa Aesar Gold
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400-610-6006; 021-67582000
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saleschina@alfa-asia.com
Shanghai ChengShao Biological Technology Co., Ltd. Gold
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021-61847300 13341622919
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shcss01@163.com
Nanjing Redwood Fine Chemical Co., Ltd. Gold
Tel:
86-400-8464006
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tony@redwoodchem.com
Wuxi Bikang Bioengineering Co., Ltd Gold
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0510-80245888-
Email:
1258079079@qq.com
Creasyn Finechem(Tianjin) Co., Ltd.
Tel:
022-83945878-
Email:
export@creasyn.com
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