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| CAS No.: | 56-41-7 |
|---|---|
| Name: | L-alpha-Alanine |
| Molecular Structure: | |
|
|
|
| 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: |
 Xi
|
| Risk Codes: | 36/37/38 |
| Safety: | 24/25-36-26 |
| PSA: | 63.32000 |
| LogP: | 0.11850 |
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- 77340-50-2
N-carbamoyl-DL-alanine
- 56-41-7
L-alanin
| Conditions | Yield |
|---|---|
| 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 | Yield |
|---|---|
| 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% |
| Conditions | Yield |
|---|---|
| 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 | Yield |
|---|---|
| With resin bound tetrathiomolybdate In methanol at 28℃; for 1.5h; ultrasonic bath; | 100% |
- 16480-55-0, 18463-04-2, 23338-69-4, 32342-58-8
sodium L-alaninate
- 56-41-7
L-alanin
| Conditions | Yield |
|---|---|
| With hydrogenchloride pH=6.5; pH-value; | 100% |
- 28875-17-4
(S)-N-(tert-butoxycarbonyl)alanine methyl ester
- 56-41-7
L-alanin
| Conditions | Yield |
|---|---|
| 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 | Yield |
|---|---|
| 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 | Yield |
|---|---|
| With hydrogenchloride for 4h; Heating; | 97% |
| Conditions | Yield |
|---|---|
| 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; |
| Conditions | Yield |
|---|---|
| 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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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): 
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
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:
