SPECIFICATIONS

GUANINE

Synonyms:			2-Amino-1,7-dihydroxy-6H-purin-6-one; 2-
				Aminohypoxanthine; Guanin; Guanineenol;
				2-Amino-6-Hydroxypurine; 2-Amino-6-purino;
				C.I. 75170

CAS No:					73-40-5

Chemical Formula:				C5H5N5O

Formula Weight:				151.11

Appearance:					White to cream crystalline powder

Assay (HPLC):				99 % - 101 % 

Melting Point:				300 deg. C minimum

Residue after Ignition:			< 0.1 %

Loss on drying:				< 0.5 %

Heavy metals:				10 ppm maximum

Effective: 01/14/09