Audited Supplier
AR
485-47-2
C9h6o4
213-340-1
Organic Analytical Reagents
AR
For Biological Purpose
99%
Analytical Reagents
Concrete
Fine Chemicals
Scientific Research
Organic Reagent
0.862
250ºC
338.4°c at 760 Mmhg
147.7°c
Sinochembt
25 Kgs Fiber Drums
99.5%
Shenyang, China
29144000
Product Description
Ninhydrin (2,2-dihydroxyindane-1,3-dione) is an organic compound with the formula C6H4(CO)2C(OH)2. It is used to detect am monia and amines. Upon reaction with these amines, ninhydrin gets converted into deep blue or purple derivatives, which are called Ruhemann's purple. Ninhydrin is most commonly used to detect fingerprints in forensic cases, as the terminal amines of lysine residues in peptides and proteins sloughed off in fingerprints react with ninhydrin.
Ninhydrin is a white solid that is soluble in ethanol and ace tone.Ninhydrin can be considered as the hydrate of indane-1,2,3-trione.
| TEST ITEMS | STANDARD | RESULTS |
| PHYSICAL APPEARANCE | SLIGHT YELLOWISH CRYSTALLINE POWDER | COMPLIES |
MELTING POINT | 250-253ºC 250-253ºC(WITH DECOMPOSITION) | PASSES TEST |
PH OF 1% SOLUTION | 4.0-5.5 4.0 to 5.5 | 4.5 |
MOISTURE CONTENT | 9-11% 9 to 11% | 9.80% |
SOLUBILITY | 0.1GM IN 10ML WATER(CLEAR PALE YELLOW SOLUTION) | PASSES TEST |
ASSAY ON ANHYDROUS BASIS | 98.0% | 99.5% |
