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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1657590Generated: October 25, 2026

Dimethyl Sulfate → HCID 21534844, compound

https://huagongshe.com/reaction/1657590

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfateHCID 6497—
ReactantSodium HydroxideHCID 14798—
Reactant2-Hydroxy-6-dimethylsulphamoylphenothiazineHCID 21534833—
SolventMethyl Ethyl KetoneHCID 6569—
ProductHCID 21534844HCID 2153484445.4%

Reaction Steps

2-Methoxy-6-dimethylsulphamoylphenothiazine (m.p. 196°-198°C.; 79.6 g.) is prepared by methylation, using dimethyl sulphate (74.5 g.), of 2-hydroxy-6-dimethylsulphamoylphenothiazine (168 g.) in the presence of powdered sodium hydroxide (30.8 g.) suspended in methyl ethyl ketone (1,820 cc.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03961055
Source datasetuspto-grants-1976_06
ORD IDord-fdb39b25b8bd48f9a4f95ac4e61fb65c
Source noteuspto-grants-1976_06