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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 484846Generated: October 30, 2026

Hydrochloric Acid → 1-(3-Diethylaminopropyl)-3-amino-4-hydroxyindazole dihydrochloride

https://huagongshe.com/reaction/484846

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
Reactant1-(3-Diethylaminopropyl)-3-amino-4-hydroxyindazoleHCID 135583101—
SolventEthanolHCID 702—
Product1-(3-Diethylaminopropyl)-3-amino-4-hydroxyindazole dihydrochlorideHCID 135583110—

Reaction Steps

In 50 ml of absolute ethyl alcohol was dissolved 3.0 g of 1-(3-diethylaminopropyl)-3-amino-4-hydroxyindazole, and into the solution was introduced dried hydrogen chloride gas under cooling with ice. To the solution was added anhydrous diethyl ether to separate crystals. Then the crystals were obtained by filtration and dried to give 1-(3-diethylaminopropyl)-3-amino-4-hydroxyindazole dihydrochloride having the following analytical value.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04533731
Source datasetuspto-grants-1985_08
ORD IDord-61a73d3b2be94be1999d22bbdbdd29c5
Source noteuspto-grants-1985_08