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CAS 121-34-6
2-Methoxy-4-carboxyphenol4-hydroxy-3-methoxybenzoic acid
Codes: (I)473558-2-a, OPIC-001
Application context (from source-drug indications)
Systolic heart failureFinerenoneDiastolic heart failureFinerenoneHeart failureFinerenoneChronic renal impairmentFinerenoneDiabetic nephropathyFinerenoneType 2 diabetesFinerenoneParkinson's diseaseOpicaponeParkinsonismOpicaponeEpilepsyOpicapone
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Finerenone | Tier C — Watch / trade | 2030 |
| Opicapone | 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.
2-Methoxy-4-carboxyphenol→4-Formyl-2-methoxyphenol
4-hydroxy-3-methoxybenzoic acid→4-hydroxy-3-methoxy-5-nitrobenzoic acid→3,4-dihydroxy-5-nitrobenzoic acid→3,4-bis(benzyloxy)-5-nitrobenzoic acid→(Z)-2,5-dichloro-N'-hydroxy-4,6-dimethylnicotinimidamide→(Z)-N'-((3,4-bis(benzyloxy)-5-nitrobenzoyl)oxy)-2,5-dichloro-4,6-dimethylnicotinimidamide→5-(3,4-bis(benzyloxy)-5-nitrophenyl)-3-(2,5-dichloro-4,6-dimethylpyridin-3-yl)-1,2,4-oxadiazole→3-(5-(3,4-bis(benzyloxy)-5-nitrophenyl)-1,2,4-oxadiazol-3-yl)-2,5-dichloro-4,6-dimethylpyridine 1-oxide
4-hydroxy-3-methoxybenzoic acid→4-hydroxy-3-methoxy-5-nitrobenzoic acid→(Z)-2,5-dichloro-N'-hydroxy-4,6-dimethylnicotinimidamide→pentane-2,4-dione→2-cyanoacetamide→4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile→5-chloro-4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile→2,5-dichloro-4,6-dimethylnicotinonitrile→4-hydroxy-3-methoxy-5-nitrobenzoyl chloride→4-(3-(2,5-dichloro-4,6-dimethylpyridin-3-yl)-1,2,4-oxadiazol-5-yl)-2-methoxy-6-nitrophenol→2,5-dichloro-3-(5-(4-hydroxy-3-methoxy-5-nitrophenyl)-1,2,4-oxadiazol-3-yl)-4,6-dimethylpyridine 1-oxide
Intermediates available on this site
Side-by-side comparison of all listed offers on this CAS; price bands are list-price ranges, final price subject to RFQ confirmation.
| Supplier | Product | Price band | MOQ | Lead time | Qualifications | Action |
|---|---|---|---|---|---|---|
| Unibest Nantong cGMP Site | 4-Bromo-2-methoxybenzaldehyde Pharmaceutical Intermediates | On request | On request | On request | — | |
| Unibest Taizhou GMP-like Site | 4-formyl-3-methoxybenzonitrile Pharmaceutical Intermediates | On request | On request | On request | — | |
| Qualified Partner — East China API Works | 4-AMino-5-Methylpyridin-2-ol Pharmaceutical Intermediates | On request | On request | On request | — | |
| Unibest Nantong cGMP Site | 2-chloro-5-methylpyridin-4-amine Pharmaceutical Intermediates | On request | On request | On request | — | |
| Unibest Taizhou GMP-like Site | 2-Cyanoethyl 3-oxobutanoate Pharmaceutical Intermediates | On request | On request | On request | — | |
| Qualified Partner — East China API Works | 2-cyanoethyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate Pharmaceutical Intermediates | On request | On request | On request | — |
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.