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L-Proline CAS 147-85-3

L-Proline is one of the 18 amino acids that the human body uses to synthesize proteins. It is a colorless to white crystal or crystalline powder at room temperature, with a slight odor and a slightly sweet taste. It is very soluble in water, difficult to dissolve in ethanol, and insoluble in ether and n-butanol. Amino acids are a general term for a class of organic compounds containing amino and carboxyl groups. The presence of amino acids in the human body not only provides an important raw material for synthesizing proteins, but also provides a material basis for promoting growth, conducting normal metabolism, and maintaining life.
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  • 147-85-3

  • bosschem

  • 147-85-3

L-Proline Basic information
Product Name: L-Proline
CAS: 147-85-3
MF: C5H9NO2
MW: 115.13
EINECS: 205-702-2
Mol File: 147-85-3.mol
L-Proline Chemical Properties
Melting point 228 °C (dec.) (lit.)
alpha -85.5 º (c=4, H2O)
Boiling point 215.41°C (rough estimate)
bulk density 500kg/m3
density 1.35
vapor pressure 0Pa at 25℃
refractive index -85 ° (C=4, H2O)
FEMA 3319 | L-PROLINE
storage temp. 2-8°C
solubility H2O: 50 mg/mL
pka 1.95, 10.64(at 25℃)
form powder
color White
PH 6.0-7.0 (25℃, 1M in H2O)
Odor at 100.00 %. odorless
Odor Type odorless
optical activity [α]20/D 85.0±1.0°, c = 5% in H2O
biological source synthetic
Water Solubility soluble
λmax λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.05
Sensitive Hygroscopic
Merck 147,780
JECFA Number 1425
BRN 80810
Stability: Stable. Incompatible with strong oxidizing agents.
InChIKey ONIBWKKTOPOVIA-UHFFFAOYSA-N
LogP -2.54 at 20℃
CAS DataBase Reference 147-85-3(CAS DataBase Reference)
NIST Chemistry Reference Proline(147-85-3)
EPA Substance Registry System L-Proline (147-85-3)

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