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L-Alanine CAS 56-41-7

L-Alanine is white crystal or crystalline powder, no peculiar smell, with sweet taste. It is easily soluble in water (16.5%, 25℃), insoluble in ether or acetone. The decomposition temperature is 297℃>, mp233℃, isoelectric point 5.79, pka-COOH=2.34, Pka-NH3=9.60, [α]25D+14.6 (C=0.5~2.0g/ml, 5mol/LHCl). L-Alanine is a non-essential amino acid for the human body, which is formed by transferring the amino group of glycine to pyruvate in the body. In the glucose-alanine cycle, it keeps the blood ammonia level low. Alanine is an excellent transporter of nitrogen in the blood. It is also an effective amino acid for sugar production.
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  • 56-41-7

  • bosschem

  • 56-41-7

L-Alanine Basic information
Description References
Product Name: L-Alanine
CAS: 56-41-7
MF: C3H7NO2
MW: 89.09
EINECS: 200-273-8
Mol File: 56-41-7.mol
L-Alanine Chemical Properties
Melting point 314.5 °C
alpha 14.5 º (c=10,6N HCl,dry sub.)
Boiling point 212.9±23.0 °C(Predicted)
bulk density 660kg/m3
density 1,432 g/cm3
FEMA 3818 | DL-ALANINE
refractive index 1.4650 (estimate)
storage temp. 2-8°C
solubility H2O: 100 mg/mL
pka 2.34(at 25℃)
form powder
color White to almost white
PH 5.5-6.5 (100g/l, H2O, 20℃)
Odor odorless
Odor Type odorless
optical activity [α]20/D +14.0±1°, c = 5% in 5 M HCl
biological source synthetic
Water Solubility 166.5 g/L (25 ºC)
λmax λ: 260 nm Amax: ≤0.03
λ: 280 nm Amax: ≤0.02
Merck 14,204
BRN 1720248
Stability: Stable. Incompatible with strong oxidizing agents.
InChIKey QNAYBMKLOCPYGJ-REOHCLBHSA-N
LogP -0.68
CAS DataBase Reference 56-41-7(CAS DataBase Reference)
NIST Chemistry Reference Alanine(56-41-7)
EPA Substance Registry System L-Alanine (56-41-7)

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