L-Leucine, Pharmpur®, Ph Eur, BP, USP
- Synonyms: 2-Amino-4-methylvaleric acid, a-Aminoisocaproic acid, 2-Amino-4-methylpentanoic acid
- C6H13NO2
- M = 131,18 g/mol
- CAS [61-90-5]
- EINECS-No.: 200-522-0
- Solub. in water: (20 ºC): 24 g/l
- Melting point: 300 ºC (decomposes)
- Tariff number: 2922 49 95 90
- Applications: in biochemistry, in food industry, synthesis of organic products, in pharma industry.
SPECIFICATIONS
dried sample) : 98,5 - 101,0 %
identification: passes test
appearance of solution: passes test
HCl 250g/l): +14,5 º - +16,5 °
specific rotation ([a]25°/D; c=4, HCl 6N): + 14,9 º - + 17,3 º
pH (1 %, H2O): 5,5 - 7,0
chlorides (Cl): max. 200 ppm
sulfates (SO4): max. 300 ppm
ammonium (NH4): max. 0,02 %
iron (Fe): max. 10 ppm
ninhydrin-positive substances: passes test
residue on ignition: max. 0,1 %
loss on drying (105 ºC): max. 0,2 %
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