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- Molecular formula: C3H7NO2
- Molar mass: 89.093
- CAS Registry Number: 302-72-7
- Appearance: DL-Alanine, 99%; DL-Alanine, 99%; white solid; White crystalline powder; odourless; white crystalline powder
- Melting point: 240 to 292 °C
- Boiling point: 212.9 °C
- Solubility: Water, 1.64e+005 mg/L (25 deg C), 1.66e+005 mg/L (25 deg C), 1.65e+005 mg/L (25 deg C), 1.64e+005 mg/L (25 deg C), 1.66e+005 mg/L (25 deg C), 1.65e+005 mg/L (25 deg C)
- Safety sheet: Not available
- Spectra: NMRShiftDB 13C NMR, Massbank MS (1, 2, 3, 4), also check on SDBS. Add Spectra (Help).
Alanine (abbreviated as Ala or A; encoded by the codons GCU, GCC, GCA, and GCG) is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH3+ form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO− form under biological conditions), and a side chain methyl group, classifying it as a nonpolar (at physiological pH), aliphatic amino acid. It is non-essential in humans, meaning the body can synthesize it.
The L-isomer (left-handed) of alanine is one of the 20 amino acids encoded by the human genetic code. L-Alanine is second only to leucine in rate of occurrence, accounting for 7.8% of the primary structure in a sample of 1,150 proteins. The right-handed form, D-Alanine occurs in bacterial cell walls and in some peptide antibiotics.
Alanine (IUPAC Name); (R,S)-Alanine; (RS)-2-Aminopropionsaeure; 2-aminopropanoic acid; 2-Aminopropionic Acid; DL-alanine; alpha-Aminopropanoic acid; Alpha-aminopropionic acid; d,l-alanine; DL-2-Aminopropanoic acid; DL-2-aminopropionic acid; DL-alpha-Alanine; DL-alpha-Aminopropionic acid; DL-Aminopropanoic acid; Methyl glycine; 2-Amino-propanoic acid
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