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Name D-Alanine
EINECS206-418-1
CAS No. 338-69-2
Density1.161g/cm³
PSA63.32000
LogP0.11850
Solubility155 g/L (20 °C) in water
Melting Point291 °C (dec.)(lit.)
FormulaC₃H₇NO₂
Boiling Point212.9 °C at 760 mmHg
Molecular Weight89.0941
Flash Point82.6 °C
Transport InformationN/A
AppearanceWhite crystalline powder
Safety24/25-36-26
Risk Codes36/37/38
Molecular Structure
Hazard SymbolsXi
SynonymsXi
Article Data211

D-Alanine Synthetic route

: 80222-96-4
2-aminopropanamide hydrochloride

: 338-69-2
D-Alanine

Conditions

Conditions	Yield
Escherichia coli JM109; pCl38DP In various solvent(s) at 30℃; for 0.15h;	100%

: 174591-36-7
(3R,6S,1'S)-3,6-dimethyl-4-N-(1'-phenethyl)-1,4-morpholin-2,5-dione

: 338-69-2
D-Alanine

Conditions

Conditions	Yield
With hydrogen iodide for 1h; Heating;	100%

: (R)-2-(2-Oxo-4-phenyl-oxazolidin-3-yl)-propionic acid

: 338-69-2
D-Alanine

Conditions

Conditions	Yield
With ammonia; lithium In tetrahydrofuran; tert-butyl alcohol at -78℃; for 0.5h;	99%

: (R)-2-((R)-2-Oxo-4-phenyl-oxazolidin-3-yl)-propionic acid

: 338-69-2
D-Alanine

Conditions

Conditions	Yield
With ammonia; lithium In tetrahydrofuran; tert-butyl alcohol at -78℃; for 0.5h; Birch reduction;	99%

: 127-17-3
2-oxo-propionic acid

: 338-69-2
D-Alanine

Conditions

Conditions	Yield
With isopropylamine In aq. buffer at 37℃; for 24h; pH=7.0; Enzymatic reaction;	95%
With D-glucose; Bacillus subtilis glucose dehydrogenase; Symbiobacterium thermophilum meso-Diaminopimelate dehydrogenase W121L/H227I mutant; NADP; ammonium chloride In aq. buffer at 37℃; for 24h; pH=8.5; Kinetics; Reagent/catalyst; Enzymatic reaction;	49%
With ammonium hydroxide; D-amino acid oxidase In phosphate buffer for 10h; pH=6.5; Reduction; Electrochemical reaction;

: 3744-87-4, 7764-95-6, 15761-38-3
Boc-(R)-Ala

: 338-69-2
D-Alanine

Conditions

Conditions	Yield
With water at 170℃; for 0.05h; Microwave irradiation;	95%

: 21028-13-7
(R)-(+)-2-hydrazinopropionic acid

: 338-69-2
D-Alanine

Conditions

Conditions	Yield
With hydrogen; platinum(IV) oxide	92%

: 127-17-3
2-oxo-propionic acid

A: 56-41-7
L-alanin

B: 338-69-2
D-Alanine

Conditions

Conditions	Yield
With CC10H14NOSCH2CH2CH3N(CH3)2 (5); zinc diacetate In methanol at 30℃; Product distribution; pH 4.00; other reagents;	A 9% B 91%
With 5-((3-(dimethylamino)propyl)thio)-4-(aminomethyl)-3-hydroxyl-5,6,7,8-tetraquinoline In methanol at 30℃; Product distribution; stereoselective transamination at pH=4.00, various reagents and pH;	A 7 % Chromat. B 93 % Chromat.
With ethylenediaminetetraacetic acid; D-(R)-phenylalanine at 20℃; for 24h; pH=8; Product distribution; Further Variations:; Reagents; transamination;

: 143746-61-6
(3R,6R)-1,4-N,N-((S)-1-phenyleth-1-yl)-3,6-dimethylpiperazine-2,5-dione

: 338-69-2
D-Alanine

Conditions

Conditions	Yield
With hydrogen iodide for 1h; Heating;	90%

: (R)-2-tert-Butoxycarbonylamino-propionic acid 2-hydroxy-ethyl ester

: 338-69-2
D-Alanine

Conditions

Conditions	Yield
With trimethylsilyl iodide In chloroform for 0.0833333h;	88%

D-Alanine Chemical Properties

Molecular Structure:

Molecular Formula: C₃H₇NO₂
Molecular Weight: 89.0932
IUPAC Name: (2R)-2-Aminopropanoic acid
Synonyms of D-Alanine (CAS NO.338-69-2): Alanine D-form ; (R)-2-Aminopropionsaeure ; (R)-Alanine ; Alanine, D- ; Ba 2776 ; D-alpha-Aminopropionsaeure ; EINECS 206-418-1 ; NSC 158286
CAS NO: 338-69-2
Classification Code: Amino Acids Derivatives ; Amino ACIDS SERIES ; Amino Acids ; PROTECTED AMINO ACID & PEPTIDES ; Alanine [Ala, A] ; Amino Acids and Derivatives ; alpha-Amino Acids ; Biochemistry ; Amino Acids and Derivatives ; GABA/Glycine receptor ; alanine ; amino acid ; organic acids ; pharmaceutical intermediate
Melting Point: 291 °C
Index of Refraction: 1.459
Molar Refractivity: 21 cm3
Molar Volume: 76.7 cm3
Surface Tension: 45.8 dyne/cm
Density: 1.161 g/cm3
Flash Point: 82.6 °C
Enthalpy of Vaporization: 49.5 kJ/mol
Boiling Point: 212.9 °C at 760 mmHg
Vapour Pressure: 0.0661 mmHg at 25°C

D-Alanine Uses

D-Alanine (CAS NO.338-69-2) can be used for synthesis of new sweetener and materials of some chiral drugs' intermediates.

D-Alanine Safety Profile

Hazard Codes of D-Alanine (CAS NO.338-69-2): Irritant Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 24/25-36-26
S24/25: Avoid contact with skin and eyes.
S36: Wear suitable protective clothing.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 3
HazardClass: IRRITANT

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D-Alanine

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D-Alanine Chemical Properties

D-Alanine Uses

D-Alanine Safety Profile

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