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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1106104Generated: November 1, 2026

4-Hydroxybenzaldehyde → HCID 136203571, compound

https://huagongshe.com/reaction/1106104

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-HydroxybenzaldehydeHCID 126—
Reactant1-Phenyl-3-carboxy-5-pyrazoloneHCID 67061—
SolventMethanolHCID 887—
ProductHCID 136203571HCID 136203571—

Reaction Steps

204 g (1 mole) of 1-phenyl-3-carboxy-2-pyrazolin-5-one and 122 g (1 mole) of p-hydroxybenzaldehyde were dissolved in 1000 ml of methanol. After a few minutes of refluxing the dye started crystallizing and after 1 h of boiling the reaction mixture was cooled to room temperature. The dye was filtered with suction and rinsed with methanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04311787
Source datasetuspto-grants-1982_01
ORD IDord-9cbfd77500d348baba10109dab3ba9ed
Source noteuspto-grants-1982_01