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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 45298Generated: October 27, 2026

Acetic Acid → HCID 178476642, compound

https://huagongshe.com/reaction/45298

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantMetformin HydrochlorideHCID 14219—
ReactantSodium HydroxideHCID 14798—
SolventWaterHCID 962—
ProductHCID 178476642HCID 17847664252.7%

Reaction Conditions

Temperature30 °C

Reaction Steps

1 Kg (1 equivalent) of metformin hydrochloride and 2 L of water, and then 0.5 L (1.45 equivalents) of acetic acid were added to a reactor, and stirred for 2 hours at 30° C. to dissolve thoroughly. Then 289.8 g (1.2 equivalents) of aqueous solution of sodium hydroxide were added to the reaction solution for 1 hour. The resulting crystal was filtered and washed with acetone, and then dried at 60° C. to obtain 601 g of metformin acetate (yield: 52.7%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08541474B2
Source datasetuspto-grants-2013_09
ORD IDord-454cebb606194248a921a8f6ef541f6e
Source noteuspto-grants-2013_09