HCID 86699468, compound → Sodium (E)-2-((2E,4E)-3-(2-Carboxyethyl)-5-(5-chloro-3,3-dimethyl-7-(3-sulfonatopropyl)-3H-pyrrolo[2,3-b]pyridin-7-ium-2-yl)penta-2,4-dienylidene)-3,3-dimethyl-1-(3-sulfonatopropyl)indoline-5-sulfonate

Participants

Role	Name	HCID	Charge
Reactant	HCID 86699468	HCID 86699468	—
Reactant	HCID 178525457	HCID 178525457	—
Product	Sodium (E)-2-((2E,4E)-3-(2-Carboxyethyl)-5-(5-chloro-3,3-dimethyl-7-(3-sulfonatopropyl)-3H-pyrrolo[2,3-b]pyridin-7-ium-2-yl)penta-2,4-dienylidene)-3,3-dimethyl-1-(3-sulfonatopropyl)indoline-5-sulfonate	HCID 57329959	—

Compound 19 is prepared analogously to compound 9 (Example 9), except that compound 18 is used as a starting material. λMeOH=680 nm.