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

ALIZARIN RED S CERTIFIED
(C.I. 58005)

Synonyms:				Mordant Red 3, Sodium alizarin sulfonate; Alizarin sulfonic acid sodium salt; Alizarin carmine; 3,4-Dihydroxy-9, 10-dioxo-2-anthracenesulfonic acid sodium salt.

CAS No:				130-22-3

Formula:				C14H7O7SNa

F.W.:					342.26

Description:				Yellow to orange to brown powder

Identification (IR):			Conforms to structure and Standard

Loss on Drying @110 Deg. C:	6%  Maximum

Solubility (0.1% in H2O):		Clear yellow solution

Visual transition Interval:		From pH 3.5 (yellow) to pH 6.5 (pink) and
					From pH 9.4 (orange) to pH 12.0 (violet)

Effective: 04/19/2013