IUPAC Name: sodium 1-amino-4-(cyclohexylamino)-9,10-dioxoanthracene-2-sulfonate 
Empirical Formula: C₂₀H₂₀N₂NaO₅S
Molecular Weight: 422.43
EINECS: 224-460-9 
Structure of C.I. Acid Blue 62 (CAS NO.4368-56-3):

Classification Code: Mutation data 
Synonyms of C.I. Acid Blue 62 (CAS NO.4368-56-3): 9,10-Dihydro-1-amino-4-(cyclohexylamino)-9,10-dioxo-2-
anthracenesulfonic acid sodium salt ; Acid Alizarine Pure Blue R ; Alizarine Brilliant Sky Blue R ; Alizarine Fast Blue RFE ;
 Alizarine Supra Sky RA ; Alizarine brilliant sapphire R ; Brilliant Alizarine Cyanine R ; Brilliant Alizarine Light Blue 3FR ; Erio Anthracene Brilliant Blue RFF ; Erionyl Blue E-RFF ; Eriosin Fast Blue RFF ; Kayacyl Sky Blue R ; Kayaku Alizarine Sky Blue R ; Polan Navy Blue E 2R ; Suminol Levelling Sky Blue R ; Tertracid Brilliant Light Blue R   

Reported in EPA TSCA Inventory.

Moderately toxic by intraperitoneal route. Mutation data reported. When heated to decomposition it emits toxic vapors of NO_x and SO_x.