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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 650223Generated: November 1, 2026

Hydrochloric Acid → Tetrahydrofolic acid

https://huagongshe.com/reaction/650223

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant(6S)-5,6,7,8-tetrahydrofolic acidHCID 135398650—
SolventWaterHCID 962—
ProductTetrahydrofolic acidHCID 135444742—

Reaction Steps

By dissolving 20 g of the resulting crystalline (6S)-tetrahydrofolic acid in 80 ml of water at pH 9 and subsequently slowly bringing the pH to 5.1 using hydrochloric acid, 4.5 g of crystalline (6S)-tetrahydrofolic acid with a chemical content of 94.0% and a (6S) percentage of 94.7 are obtained after seeding with crystalline (6S)-tetrahydrofolic acid. The water content after drying is 1.8%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06271374B1
Source datasetuspto-grants-2001_08
ORD IDord-df7ea9a716e84a09925975e3ae70b0e6
Source noteuspto-grants-2001_08