CAS 21691-49-6

Methyl L-methioninate

Codes：Ethambutol Hydrochloride-001

Application context (from source-drug indications)

结核分枝杆菌感染盐酸乙胺丁醇/利福平/异烟肼肺结核盐酸乙胺丁醇

Source drugs (routes using this intermediate)

Drug	Tier	Expiry
Ethambutol Hydrochloride/Rifampicin/IsoniazidEthambutol Hydrochloride/Rifampicin/Isoniazid	Tier C — Watch / trade	-
Ethambutol HydrochlorideEthambutol Hydrochloride	Tier C — Watch / trade	-

Position in synthesis routes (up/downstream chain)

Ordered by route registration; left → right is the synthesis direction. The highlighted node is the current CAS; others link to their own profiles.

Ethambutol Hydrochloride/Rifampicin/Isoniazid优化路线steps: 2total yield: 27g(Ethambutol dihydrochloride (API))

Methyl L-methioninate→(2S)-2-Aminobutan-1-ol→Glycol dichloride→(2S,2'S)-2,2'-(Ethane-1,2-diyldiimino)dibutan-1-ol dihydrochloride

Ethambutol Hydrochloride优化路线steps: 2total yield: 27g(Ethambutol dihydrochloride (API))

Methyl L-methioninate→(2S)-2-Aminobutan-1-ol→Glycol dichloride→(2S,2'S)-2,2'-(Ethane-1,2-diyldiimino)dibutan-1-ol dihydrochloride

Intermediates available on this site

No listed intermediates for this target yet — send an RFQ directly and it will enter our matching pool.

This is a CAS-level registry record: registrations across routes are merged. Supplier offers and buyer demands will be matched on this CAS as the primary key.