Patent Blue V calcium salt

• Catalog No.: 74748
• CAS Number: 3536-49-0
• M. F.: C54H62CaN4O14S4
• M. W.: 1159.42648
• Purity: ≥97.0% (HPLC)

SYNONYMS

• IUPAC name: calcium bis(4-{[4-(diethylamino)phenyl][4-(diethyliminiumyl)cyclohexa-2,5-dien-1-ylidene]methyl}-6-hydroxybenzene-1,3-disulfonate)
• IUPAC Traditional name: calcium bis(4-{[4-(diethylamino)phenyl][4-(diethyliminio)cyclohexa-2,5-dien-1-ylidene]methyl}-6-hydroxybenzene-1,3-disulfonate)
• Synonyms: Food Blue 5; Acid Blue 3 calcium salt; Patent Blue V 半钙盐; Patent Blue V hemicalcium salt; Acid Blue V calcium salt

DATABASE IDS

• Beilstein Number: 4108121
• CAS Number: 3536-49-0
• Color Index Number: 42051
• E Number: E131
• MDL Number: MFCD00038746

PROPERTIES

• Empirical Formula (Hill Notation): C27H31N2O7S2 · 0.5Ca
• Grade: analytical standard
• Purity: ≥97.0% (HPLC)

DETAILS

Description (English)

Other Notes
Literature for Patent Blue Violet discusses two dyes which are very similar, Color Index Numbers 42045 and 42051. Structurally they differ with regard to the substituents on one of the aromatic rings. C.I. 42045 is 2,4-disulfo-substituted while C.I. 42051 is 2,4-disulfo-5-hydroxy-substituted. This is the latter form.

Description (简体中文)

Other Notes
Literature for Patent Blue Violet discusses two dyes which are very similar, Color Index Numbers 42045 and 42051. Structurally they differ with regard to the substituents on one of the aromatic rings. C.I. 42045 is 2,4-disulfo-substituted while C.I. 42051 is 2,4-disulfo-5-hydroxy-substituted. This is the latter form.