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L-Proline, Pharmpur®, Ph Eur, BP, USP

- Synonyms: 2-Pyrrolidine carboxylic acid
- C5H9NO2
- M = 115,13 g/mol
- CAS [147-85-3]
- EINECS-No.: 205-702-2
- Solub. in water: (20 ºC): 1500 g/l
- Melting point: 220 - 222 ºC
- LD 50 (oral, rat): > 5110 mg/kg
- Tariff number: 2933 99 90 90
- Applications: in biochemistry, chromatography, synthesis of organic products, in pharma industry.

SPECIFICATIONS

dried sample) : 98,5 - 101,0 %
Identification IR: passes test
Identification TLC: passes test
appearance of solution: clear and colourless
specific rotation ([a] 20/D, c = 4, H2O): - 84,3 ° - - 86,0 °
chlorides (Cl): max. 200 ppm
sulfates (SO4): max. 300 ppm
ammonium (NH4): max. 0,02 %
iron (Fe): max. 10 ppm
Related substances:passes test
individual impurity : max. 0,5 %
total : max. 2,0 %
ninhydrin-positive substances:
any ninhydrin-positive substances: max. 0,2 %
total : max. 0,5 %
residue on ignition: max. 0,1 %
loss on drying (105 ºC): max. 0,5 %
loss on drying (105 ºC, 3 h): max. 0,4 %