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

XYLENE CYANOL FF
(C. I. 42135)

Synonyms					Cyanol FF; Acid Blue 147

CAS No.					2650-17-1

Formula					C25H27N2NaO6S2

F.W.						538.61

Appearance					Green or dark green powder

Idebntification (IR)				Conforms to structure

Assay						75 % minimum

Lambda max.				615nm

Extinction Co-efficient			E(615nm + 3nm) = 604

Loss on drying @ 105 Deg.C		10 % maximum

Solubility					Dark blue solution
(1 mg/ml, H2O)

Suitability:					Suitable as a tracking dye for DNA sequencing

Effective: 12/20/13