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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1803478Generated: November 2, 2026

Ethanol → HCID 21570871, compound

https://huagongshe.com/reaction/1803478

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantReconcileHCID 62857—
ReactantFumaric AcidHCID 444972—
ProductSuccinic AcidHCID 1110—
ProductReconcileHCID 62857—
ProductHCID 21570871HCID 2157087182%

Reaction Steps

Cocrystals of fluoxetine HCl and succinic acid were prepared as follows. A 6.00 g sample of fluoxetine HCl and 1.01 g of fumaric acid were dissolved in 20 mL of ethanol with heating. The solution was filtered through a 0.2 μm nylon filter, concentrated to a volume of 0.8 mL, and cooled in an ice bath for 6 hours. The solid material was isolated on filter paper and allowed to dry in the air to give 5.74 g (82% yield) of flucxetine HCl:fumaric acid (2:1) cocrystal. The measured melting points were 158° C. for fluoxetine HCl, >300° C. (decomposes) for fumaric acid, and 164° C. for the cocrystal. The cocrystal is expected to have a good toxicology profile, since fumaric acid is known to be safe and appears on the Generally Recognized As Safe (“GRAS”) list from the U.S. Food and Drug Administration.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08350085B2
Source datasetuspto-grants-2013_01
ORD IDord-83f2f724b2c6484eaac4219943f78fd4
Source noteuspto-grants-2013_01