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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 45306Generated: October 26, 2026

Hydrochloric Acid → Metformin Hydrochloride

https://huagongshe.com/reaction/45306

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 178484382HCID 178484382—
SolventAcetoneHCID 180—
ProductMetformin HydrochlorideHCID 1421976.4%

Reaction Steps

500 mg of metformin free base was dissolved in 30 Ml of acetone, and then 280 Ml of concentrated hydrochloric acid was added, and stirred for 2 hours at room temperature. The resulting crystal was filtered and washed with acetone, and then dried with heated air at 70° C. to obtain 490 mg of metformin hydrochloride (yield: 76.4%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08541474B2
Source datasetuspto-grants-2013_09
ORD IDord-bb7f28c0f0144c43ad84ff9519be4688
Source noteuspto-grants-2013_09