Substance
ID:351797
Names and Identifiers
IUPAC Traditional name
L-proline
IUPAC name
(2S)-pyrrolidine-2-carboxylic acid
Synonyms
(S)-吡咯烷-2-羧酸L-脯氨酸(S)-Pyrrolidine-2-carboxylic acidL-Proline
Registration numbers
Beilstein Number
CAS Number
EC Number
MDL Number
PubChem SID
Properties
Product Information
Loss on Drying
≤0.2% loss on drying, 110 °C
Ignition Residue
≤0.1% (as SO4)
Cation Traces
NH4+: ≤20 mg/kg
Zn: ≤5 mg/kg
Fe: ≤5 mg/kg
Cu: ≤5 mg/kg
Mn: ≤5 mg/kg
Mg: ≤5 mg/kg
Cd: ≤5 mg/kg
K: ≤50 mg/kg
Pb: ≤5 mg/kg
Ni: ≤5 mg/kg
Na: ≤50 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Ca: ≤10 mg/kg
Empirical Formula (Hill Notation)
C5H9NO2
Impurities
≤0.3% foreign amino acids
Antion Traces
chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤100 mg/kg
Purity
≥99.0% (NT)
Physical Property
Melting Point
228 °C (dec.)(lit.)
Optical Rotation
[α]20/D -84.5±1°, c = 5% in H2O
Safety Information
RTECS
TW3584000
German water hazard class
1
Personal Protective Equipment
Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
MSDS Link
Molecule Details
Other Notes
Proline-catalyzed asymmetric Robinson annelation1; Asymmetric self-condensation of β-ionylideneacetaldehyde, retinal and related compounds2
Proline-catalyzed asymmetric Robinson annelation1; Asymmetric self-condensation of β-ionylideneacetaldehyde, retinal and related compounds2
Molecular Spectra
No Data Available
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References
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