1.07434

L-Proline

for biochemistry

• Synonym(s): L-Proline, Pro
• CAS Number: 147-85-3
• Molecular Weight: 115.13
• MDL number: MFCD00064318
• UNSPSC Code: 12352209
• EC Index Number: 205-702-2

Properties

• Quality Level: 100
• form: solid
• potency: >5110 mg/kg LD₅₀, oral (Rat)
• pH: 5-7 (20 °C, 100 g/L in H₂O)
• mp: 220-222 °C (decomposition)
• solubility: 1500 g/L
• density: 1.35-1.38 g/cm³ at 25 °C
• bulk density: 500 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/C5H9NO2/c7-5(8)4-2-1-3-6-4/h4,6H,1-3H2,(H,7,8)
• InChI key: ONIBWKKTOPOVIA-UHFFFAOYSA-N

Description

General description

for biochemistry

Application

L-Proline for biochemistry. CAS 147-85-3, pH 5 - 7 (100 g/l, H₂O, 20 °C).

Analysis Note

Assay (perchloric acid titration, calculated on dried substance)≥ 99.0 %Identity (IR-spectrum)passes testAppearancewhite or almost white, crystalline powder or colorless crystalsAppearance of solution (50 g/l; water)clear and colorlessSpec. rotation (α 20/D, 40 g/l, water, calc. on dried substance) -84.0 bis -86.0Chloride (Cl)≤ 0.02 %Sulfate (SO₄)≤ 0.03 %Heavy metals (as Pb)≤ 0.001 %Ninhydrin-positive substances (LC)(any ninhydrin-positive impurity)≤ 0.2 %Ninhydrin-positive substances (LC) (ammonium (570 nm))≤ 0.02 %Ninhydrin-positive substances (LC)(total impurities)≤ 0.5 %Loss on Drying (105 °C)≤ 0.4 %

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable