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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 47204Generated: October 25, 2026

Nitric Acid → HCID 178512576, compound

https://huagongshe.com/reaction/47204

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantCyanamideHCID 9864—
Reactant4-Amino-2-NitrophenolHCID 3417419—
SolventEthanolHCID 702—
ProductHCID 178512576HCID 17851257654%

Reaction Steps

A mixture of 4-amino-2-nitrophenol (25 mmol, 3.85 g) in EtOH (6 mL) on an ice bath was treated with nitric acid (69% aq soln.; 1.8 mL). To this of cyanamide (50% aq. soln.; 4 mL) was added. The reaction mixture was refluxed under N2 for 22 h. The solvent was evaporated. The dark brown solid residue was washed with EtOH and was dried under high vacuum to afford the title compound as a grey solid (3.53 g, 54%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06699854B2
Source datasetuspto-grants-2004_03
ORD IDord-1668630a45044138b5579a1df16f23ff
Source noteuspto-grants-2004_03