4-Hydroxy-L-proline, EssentQ®

- Synonyms: L(-)-4-Hydroxypyrrolidine-2-carboxylic acid
- C5H9NO3
- M = 131,13 g/mol
- CAS [51-35-4]
- EINECS-No.: 200-091-9
- Solub. in water: (20 ºC): 500 g/l
- Melting point: 274 ºC
- Tariff number: 2933 99 90 90
- Applications: synthesis of organic products, laboratory reagent.

SPECIFICATIONS
assay (titr. with HClO4) : min. 99 %
identity (IR-spectrum): passes test

chlorides (Cl): max. 0,02 %:
sulfates (SO4): max. 0,02 %:
ammonium (NH4): max. 0,02 %:
heavy metals (as Pb): max 0,001 %
iron (Fe): max 0,001 %
other aminoacids: max. 0 5 %
residue on ignition: max. 0,1 %
loss on drying (105 ºC, 3 h): max. 0,2 %