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L-Aspartic acid, Pharmpur®, Ph Eur, BP, USP

- Synonyms: L-a-Aminosuccinic acidr- C4H7NO4r- M = 133,10 g/molr- CAS [56-84-8]r- EINECS-No.: 200-291-6r- Solub. in water: (20 ºC): 4 g/lr- Melting point: 269 - 271 ºCr- LD 50 (oral, rat): > 5110 mg/kgr- Tariff number: 2922 49 95 90r- Applications: for pharmaceutical use, synthesis of organic products, in food industry, in pharma industry.rrSPECIFICATIONSrassay (acidimetric, on dried sample): 98,5 - 101,5 %ridentity (IR-spectrum): passes test: ridentification B (EP): passes testrIdentification D (EP): passes testrIdentification TLC: passes testrappearance of solution: passes testrspecific rotation ([a]20/D, c = 8, HCl 250g/l on dried substance): + 24,0 º - + 26,0 °rchlorides (Cl): max. 200 ppmrsulfates (SO4): max. 300 ppmrammonium (NH4): max. 0,02 % riron (Fe): max. 10 ppmrrmalic acid: max. 0,20 %rfumaric acid: max. 0,10 %rmaleic acid: max. 0,05 %rany unspecified impurities: max. 0,05 %rtotal unspecified impurities: max. 0,1 % rtotal: max. 0,3 %rninhydrin-positive substances: rglutamic acid: max. 0,2 %ralanine: max. 0,2 %rasparagine: max. 0,2 %rany ninhydrin-positive substances: max. 0,10 %rtotal: max. 1,0 %rD-aspartic acid: max. 0,3 %rresidue on ignition: max. 0,1 %rloss on drying (105 ºC, 3 h): max. 0,5 % r