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81710

Sigma-Aldrich

L-Proline

≥99.0% (NT)

Synonym(s):

(S)-Pyrrolidine-2-carboxylic acid

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About This Item

Empirical Formula (Hill Notation):
C5H9NO2
CAS Number:
147-85-3
Molecular Weight:
115.13
Beilstein/REAXYS Number:
80810
EC Number:
205-702-2
MDL number:
MFCD00064318
UNSPSC Code:
12352209
eCl@ss:
32160406
PubChem Substance ID:
57652886

assay

≥99.0% (NT)

form

crystalline powder

optical activity

[α]20/D −84.5±1°, c = 5% in H2O

impurities

≤0.3% foreign amino acids

ign. residue

≤0.1% (as SO4)

loss

≤0.2% loss on drying, 110 °C

color

white

mp

228 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
NH4+: ≤20 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

OC(=O)[C@@H]1CCCN1

InChI

1S/C5H9NO2/c7-5(8)4-2-1-3-6-4/h4,6H,1-3H2,(H,7,8)/t4-/m0/s1

InChI key

ONIBWKKTOPOVIA-BYPYZUCNSA-N

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Other Notes

Proline-catalyzed asymmetric Robinson annelation[1]; Asymmetric self-condensation of β-ionylideneacetaldehyde, retinal and related compounds[2]

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
BCBG3039V
BCBG0611V
1414414V
1414414
409337/1

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