L- histidine EXTRA PURE , LABORATORY CHEMICALS, SPECIFICATION

CERTIFICATE OF ANALYSIS
	Poduct Name	L-Histidine HCL
	CAS No.	5934-29-2
	Batch no:	20050606
ITEMS	SPECIFICATIONS	TEST RESULTS

Appearance	White crystaline powder	Complied
Assay	98% - 101%	99.5%
Loss on Drying	0.5% max	0.13%
Residue on Ignition	0.1% max	0.04%
Specific Rotation	(+)8.9^O - (+) 10.6^O	(+)9.1^O
PH	3.5 - 4.5	4.0
Chloride	0.02% max	Complied
Ammonium	0.02%	Complied
Sulfate	0.02% max	Complied
Iron	10 ppm max	Complied
Heavy metals	10 ppm max	Complied
Arsenic	1.0 ppm max	Complied
Total Plate Count	1000 cfu/gm max	Complied
Yeast and Moulds	100 cfu/gm max	Complied
E.Coll	Negative	Negative
Salmonella	Negative	Negative