Assay (Compl.)......................................................................99,0-104,0%
Identity according to Pharmacopoeias................................................ p/t.
pH of 5% solution.......................................................................... 4,4-5,6
MAX. IMPURITIES
Appearance of solution........................................................................ p/t.
Residual solvents (Ph.Eur./USP)............................................................ p/t
Acidity................................................................................................... p/t.
Chloride (Cl).................................................................................... 0,03 %
Nitrogen compounds (as N)......................................................... 0,005 %
Alkalis and alkaline-earths................................................................ 0,5 %
As............................................................................................... 0,0001 %
Ca................................................................................................... 0,02 %
Fe.................................................................................................. 0,005 %
Pb................................................................................................. 0,001 %