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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 570051Generated: November 2, 2026

Sulfanilic acid → HCID 13537212, compound

https://huagongshe.com/reaction/570051

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfanilic acidHCID 8479—
ReactantHCID 13537200HCID 13537200—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 13537212HCID 1353721293%

Reaction Conditions

Temperature70 °C

Reaction Steps

Sulphanilic acid (1.95 g) in water (75 ml) and ethanol (10 ml) at 70° C. was treated with 4,7-dichlorocinnoline (2.2 g) and ethanol (10 ml) was added. The resultant green suspension was stirred vigorously overnight at 70° C. The mixture was cooled, and the solid was filtered, washed with water and dried at room temperature to give 3.45 g of the title compound as the monohydrate, melting point greater than 280° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04734510
Source datasetuspto-grants-1988_03
ORD IDord-3aec8b13305b47298ce3bfbdc228f7ed
Source noteuspto-grants-1988_03