ChemicalBook > CAS DataBase List > D-Alanine

D-Alanine

Product Name
D-Alanine
CAS No.
338-69-2
Chemical Name
D-Alanine
Synonyms
D-ALA;H-D-ALA-OH;(R)-2-aMinopropanoic acid;D-alaine;(R)-Alanine;D-ALPHA-ALANINE;D-AL;Canef;Cranoc;Vastin
CBNumber
CB7783360
Molecular Formula
C3H7NO2
Formula Weight
89.09
MOL File
338-69-2.mol
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D-Alanine Property

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. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
H2O: soluble
form 
Crystalline Powder or Crystals
pka
2.31±0.10(Predicted)
color 
White to off-white
Odor
odorless
Water Solubility 
155 g/L (20 ºC)
Merck 
14,204
BRN 
1720249
LogP
-0.574 (est)
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

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

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
A7377
Product name
D-Alanine
Purity
≥98% (HPLC)
Packaging
5g
Price
$55.2
Updated
2024/03/01
Sigma-Aldrich
Product number
A7377
Product name
D-Alanine
Purity
≥98% (HPLC)
Packaging
25g
Price
$190
Updated
2024/03/01
TCI Chemical
Product number
A0177
Product name
D-Alanine
Purity
>98.0%(T)
Packaging
5g
Price
$29
Updated
2024/03/01
TCI Chemical
Product number
A0177
Product name
D-Alanine
Purity
>98.0%(T)
Packaging
25g
Price
$82
Updated
2024/03/01
Alfa Aesar
Product number
A10231
Product name
D-Alanine, 99%
Packaging
5g
Price
$38.8
Updated
2024/03/01
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D-Alanine Chemical Properties,Usage,Production

Chemical Properties

White Crystalline Powder

Uses

D-Alanine is essential for the biosynthesis of peptidoglycan crosslinking sub-units that are used for bacterial cell walls.

Definition

ChEBI: The D-enantiomer of alanine.

Application

D-Alanine is a LHRH-antagonists, e.g., Abarelix (antineoplas- tic)

General Description

Alanine is a non essential amino acid.

Biochem/physiol Actions

D-Alanine is the non-proteinogenic form of alanine which is used in bacterial cell wall biosynthesis. D-Alanine is used to study the specificity and kinetics of alanine racemase(s) (alaR).

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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View Lastest Price from D-Alanine manufacturers

Hebei Duling International Trade Co. LTD
Product
D-Alanine 338-69-2
Price
US $60.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
100 tons
Release date
2023-02-09
Shanghai UCHEM Inc.
Product
D-alanine 338-69-2
Price
US $70.00/kg
Min. Order
1kg
Purity
0.98
Supply Ability
25kg
Release date
2023-11-14
Hebei Yanxi Chemical Co., Ltd.
Product
D-Alanine 338-69-2
Price
US $60.00/KG
Min. Order
25KG
Purity
98%
Supply Ability
200 tons
Release date
2020-07-22

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