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56-41-7

Basic Information
CAS No.: 56-41-7
Name: L-alpha-Alanine
Article Data: 542
Molecular Structure:
Molecular Structure of 56-41-7 (L-alpha-Alanine)
Formula: C3H7NO2
Molecular Weight: 89.0941
Synonyms: L-.alpha.-Alanine;alpha-Alanine;Alanine (USP);2-Aminopropanoic acid, L-;L-alpha-alanine;Propanoic acid, 2-amino-, (S);L-2-Aminopropionsaeure;(S)-alpha-Aminopropionsaeure;L- Alanine;L-2-Aminopropionic acid;L-Alanine (JAN);Propanoic acid, 2-amino-;Alanine, L-;2-aminopropanoic acid;L(+)-Alanine;(2S)-2-azaniumylpropanoate;L-Alanin;2-Aminopropionic acid;.alpha.-Alanine;Alanine, L- (7CI,8CI);L-Alanine (9CI);(S)-alanine;Ala;H-Ala-OH;(s)-2-Amino propionic acid;L-Alanine (L-Ala);L - Alanine;
EINECS: 200-273-8
Density: 1.161 g/cm3
Melting Point: 314.5 °C (dec.)(lit.)
Boiling Point: 212.9 °C at 760 mmHg
Flash Point: 82.6 °C
Solubility: 166.5 g/L (25 °C) in water
Appearance: White crystalline powder
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 24/25-36-26
PSA: 63.32000
LogP: 0.11850
Synthetic route
77340-50-2

N-carbamoyl-DL-alanine

56-41-7

L-alanin

Conditions
ConditionsYield
With NH4Cl-NH4OH buffer pH 8.5; nickel dichloride at 60℃; for 24h; N-carbamyl-L-amino acid aminohydrolase;100%
With sodium phosphate buffer; N-carmamyl-L-amino acid aminohydrolase of Pseudomonas sp. strain NS671; water; manganese(II) at 30℃; for 0.5h; Product distribution;18.1 mmol
15761-38-3

L-N-Boc-Ala

56-41-7

L-alanin

Conditions
ConditionsYield
With water at 170℃; for 0.05h; Microwave irradiation;100%
With water at 150℃; for 2h; Subcritical conditions;100%
With tetradecyl(trihexyl)phosphonium bistriflamide; trifluoroacetic acid at 130℃; for 0.116667h; Ionic liquid;98%
113-24-6

sodium pyruvate

56-41-7

L-alanin

Conditions
ConditionsYield
With sodium formate; ammonium chloride; NADH In aq. phosphate buffer at 25℃; for 6h; pH=8.0; Kinetics; Reagent/catalyst; Green chemistry; Enzymatic reaction;100%
With zinc(II) perchlorate; (R)-15-amino-methyl-14-hydroxy-5,5-dimethyl-2,8-dithia<9>(2,5)pyridinophane In methanol for 24h; Ambient temperature;72%
220930-89-2

Proc-Ala-OH

56-41-7

L-alanin

Conditions
ConditionsYield
With resin bound tetrathiomolybdate In methanol at 28℃; for 1.5h; ultrasonic bath;100%
Conditions
ConditionsYield
With hydrogenchloride pH=6.5; pH-value;100%
28875-17-4

(S)-N-(tert-butoxycarbonyl)alanine methyl ester

56-41-7

L-alanin

Conditions
ConditionsYield
With water at 100℃; for 4h;99%
1256490-52-4

(S)-2-[(2,3,4,5,6-pentafluorophenoxy)phenoxyphosphorylamino]propionic acid isopropyl ester

A

56-41-7

L-alanin

B

771-61-9

2,3,4,5,6-pentafluorophenol

C

108-95-2

phenol

Conditions
ConditionsYield
With sodium hydroxide In methanol; water at 25 - 60℃; for 4h; Reagent/catalyst; Temperature; Solvent;A 94.2%
B 95.7%
C 98.2%
108437-91-8

(2S,5S)-N-<(S)-N-bis(methylthio)methylenealanyl>-2,5-bis(methoxymethoxymethyl)pyrrolidine

56-41-7

L-alanin

Conditions
ConditionsYield
With hydrogenchloride for 4h; Heating;97%
52-90-4

L-Cysteine

56-41-7

L-alanin

Conditions
ConditionsYield
With [4,4’-bis(1,1-dimethylethyl)-2,2’-bipyridine-N1,N1‘]bis [3,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl-N]phenyl-C]iridium(III) hexafluorophosphate; triethyl phosphite In aq. phosphate buffer; acetonitrile at 20℃; for 0.5h; pH=6.5; Catalytic behavior; Solvent; Reagent/catalyst; Irradiation;96%
With tris(2,2'-bipyridyl)ruthenium dichloride; trisodium tris(3-sulfophenyl)phosphine In water at 20℃; for 16h; Inert atmosphere; Irradiation;84%
With triethyl borane; triethyl phosphite 1.) THF, CH3CN, RT, 90 min, 2.) THF, CH3CN, RT, irradiation, 6.5 h; Multistep reaction;
With nickel In water at 60℃; for 0.5h; Product distribution; desulfurization;
302-72-7

rac-Ala-OH

56-41-7

L-alanin

Conditions
ConditionsYield
In water at 37℃; for 10h; NADH, ammonium chloride, sodium formate, D-amino acid oxidase, catalase, leucine dehydrogenase, formate dehydrogenase, Tris-HCl buffer, pH 8.5;95%
optische Spaltung;
With D-amino acid oxide ase-substance
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    Name:L-Alanine The alias:H-Ala-OH,L-2-Aminopropionic Acid,L-alanine-12C3; 2- Aminopropanoic Acid CAS NO:56-41-7 Molecular formula:C3H7NO2 Molecular weight:89.09 Product Quality 12 years of chemical raw materials Mature operation of the indust

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    PRODUCT DETAILS Product Name L-Alanine(Food-grade) Molecular formula C3H7NO2 CAS No. 56-41-7 EINECS No. 200-273-8

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Consensus Reports

Reported in EPA TSCA Inventory.

Specification

1. Introduction of L-Alanine

L-Alanine, with the IUPAC Name of (2S)-2-aminopropanoic acid, is being stable while incompatible with strong oxidizing agents. This chemical belongs to the Product Categories which include Food & Feed ADDITIVES; Amino Acids; Alanine [Ala, A]; Amino Acids and Derivatives; alpha-Amino Acids; Biochemistry; Nutritional Supplements; L-Amino Acids; Amino Acids; Alphabetical Listings; AStable Isotopes; Stable Isotopes; GABA/Glycine receptor; bio-chemical; food additive; food flavor; alanine; amino acid; chemicals; food additives; organic acids; pharmaceutical intermediate.

2. Properties of L-Alanine

L-Alanine has the following property datas: (1)Index of Refraction: 1.459; (2)Molar Refractivity: 21 cm3; (3)Molar Volume: 76.7 cm3; (4)Polarizability: 8.32×10-24cm3; (5)Surface Tension: 45.8 dyne/cm; (6)Density: 1.161 g/cm3; (7)Flash Point: 82.6 °C; (8)Enthalpy of Vaporization: 49.5 kJ/mol; (9)Melting Point: 314.5 °C (dec.)(lit.); (10)Boiling Point: 212.9 °C at 760 mmHg; (11)Vapour Pressure: 0.0661 mmHg at 25°C; (12)Water Solubility: 166.5 g/L (25 oC).

3. Structure Descriptors of L-Alanine

You could convert the following datas into the molecular structure:
InChI: InChI=1S/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6)/t2-/m0/s1 
InChIKey: InChIKey=QNAYBMKLOCPYGJ-REOHCLBHSA-N 
Smiles: C([C@H](C)N)(O)=O

4. Use of L-Alanine

In food and drink, L-Alanine (CAS NO.56-41-7) is used as the antiseptic, flavour sauce, and amino acids low-alcohol liquor etc. In medicine,  it is used for synthesis of amino acids infusion.

5. Safety information of L-Alanine
Hazard Codes of L-Alanine (CAS NO.56-41-7): IrritantXi
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
RTECS: AY2990000
F: 10
HazardClass: IRRITANT
HS Code: 29224995

6. Production of L-Alanine

L-Alanine can be prepared by the condensation of acetaldehyde with ammonium chloride in the presence of sodium cyanide by the Strecker reaction, or by the ammonolysis of 2-bromopropionic acid: