ANALYTYKA Fine Chemicals and Pharmaceutical Raw Materials

Pararosaniline base (C.I. 42500) DC


C19H19N3O



 

M.= 305,38 CAS [25620-78-4] EINECS 207-395-0
NC 3204 13 00    


SYNONYMS: Paramagente · Parafuchsin · Basic Red 9 · Solvent Red 41 ·
PHYSICAL DATA: Dark red powder · Soluble in diluted acids · M. P. : 205 ºC (dec.) ·
 

   R: 40
S: 36/37

SPECIFICATIONS:

Identity IR p/t.
l of max. ABS in C2H5OH 50% 544-547 nm
A 1%; 1cm; lmax >2300
Ratio lmax., P-/+15 nm 1,15-1,35
T.L.C p/t.

MAXIMUM LIMIT OF IMPURITIES		   
Loss on drying at 110°C 5 %