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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1935513Generated: October 28, 2026

4-Hydrazinylbenzenesulfonamide hydrochloride → HCID 178514753, compound

https://huagongshe.com/reaction/1935513

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Hydrazinylbenzenesulfonamide hydrochlorideHCID 2794567—
Reactant2,3-dioxo-2,3-dihydro-1H-indole-5-sulfonamideHCID 12142411—
SolventWaterHCID 962—
ProductHCID 178514753HCID 178514753—

Reaction Steps

The title compound was prepared from 1H-indole-2,3-dione-5-sulfonic acid amide and 4-sulfonamidophenylhydrazine hydrochloride according to Procedure G: mp>250° C.; 1H NMR (DMSO-d6): δ 7.04 (d, J=8.4 Hz, 1H), 7.25 (s, 2H), 7.26 (s, 2H), 7.60 (d, J 8.9 Hz, 2H), 7.70 (dd, J=8.2, 1.9 Hz, 1H), 7.78 (d, J=8.7 Hz, 2H), 7.98 (d, J=1.6 Hz, 1H), 11.43 (s, 1H), 12.75 (s, 1H); APCI−MS m/z 395 (M)−. Anal. Calcd for C14H13N5O5S2.0.5 H2O: C, 41.58; H, 3.49; N, 17.32; S, 15.86. Found: C, 41.67; H, 3.46; N, 17.26; S, 15.78.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06387919B1
Source datasetuspto-grants-2002_05
ORD IDord-18842f986db44c2f89d1b8a85897318c
Source noteuspto-grants-2002_05