S P E C I F I C A T I O N S

NINHYDRIN ACS

Synonyms:				1,2,3-Indantrione monohydrate; triketohydrindene 						hydrate

CAS #:				485-47-2

Chemical Formula:			C9H6O4

Formula Weight:			178.14

Description:				White to yellowish-white to light pink
					To tan crystalline powder

Identification &			Passes ACS test
Melting Point:

Assay (HPLC):			98.0% minimum
Assay (Titration):			98.0% minimum

Loss on drying (at 105 Deg.C):	< 11% 

pH (10 g/l, 25 Deg. C):		4.6 – 5.6

Solubility:				To Pass Test

Sensitivity to			To Pass Test
Amino Acids:

Effective: 01/06/14