Indocyanine Green
Title: Indocyanine Green
CAS Registry Number: 3599-32-4
CAS Name: 2-[7-[1,3-Dihydro-1,1-dimethyl-3-(4-sulfobutyl)-2H-benz[e]indol-2-ylidene]-1,3,5-heptatrienyl]-1,1-dimethyl-3-(4-sulfobutyl)-1H-benz[e]indolium inner salt, sodium salt
Additional Names: anhydro-3,3,3¢,3¢-tetramethyl-1,1¢-bis(4-sulfobutyl)-4,5,4¢,5¢-dibenzoindotricarbocyanine hydroxide inner salt sodium salt; Fox green
Trademarks: Cardio-Green (Becton Dickinson)
Molecular Formula: C43H47N2NaO6S2
Molecular Weight: 774.96
Percent Composition: C 66.64%, H 6.11%, N 3.61%, Na 2.97%, O 12.39%, S 8.28%
Literature References: Prepn: Heseltine, Brooker, US 2895955 (1959 to Kodak).
Properties: A tricarbocyanine type of dye with infrared absorbing properties; peak absorption at about 800 nm. Has little or no absorption in the visible. Commercial product contains moisture and about 5% sodium iodide as contaminant.
Use: In infrared photography; in prepn of Wratten filters.
Therap-Cat: Diagnostic aid (blood volume determination, cardiac output, hepatic function).
Keywords: Diagnostic Aid.

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