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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1287787Generated: October 30, 2026

Sulfuric Acid → HCID 21505996, compound

https://huagongshe.com/reaction/1287787

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant3-Amino-4-phenoxy-5-sulfamoylbenzoic acidHCID 119927—
Solvent1-PentanolHCID 6276—
ProductHCID 21505996HCID 21505996—

Reaction Steps

A mixture of 3-amino-4-phenoxy-5-sulphamyl-benzoic acid (6 g), n-pentanol (60 ml), and conc. sulphuric acid (0.5 ml) was refluxed for 24 hours. After cooling, the precipitated n-pentyl 3-pentylamino-4-phenoxy-5-sulphamyl-benzoate was isolated by filtration and recrystallized from n-pentanol. After drying in vacuo, the compound was obtained with a melting point of 138°-139° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03985777
Source datasetuspto-grants-1976_10
ORD IDord-a7494207e4014e0195975bdb5620cb0e
Source noteuspto-grants-1976_10