← Back to patent-cliff list
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)
收缩性心力衰竭非奈利酮舒张期心力衰竭非奈利酮心脏衰竭非奈利酮慢性肾功能不全非奈利酮糖尿病肾病非奈利酮二型糖尿病非奈利酮帕金森病奥吡卡朋帕金森综合征奥吡卡朋癫痫奥吡卡朋
Source drugs (routes using this intermediate)
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 |
|---|---|---|---|---|---|
| Unibest Nantong cGMP Site | 4-Bromo-2-methoxybenzaldehyde Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Taizhou GMP-like Site | 4-formyl-3-methoxybenzonitrile Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Qualified Partner — East China API Works | 4-AMino-5-Methylpyridin-2-ol Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Nantong cGMP Site | 2-chloro-5-methylpyridin-4-amine Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Taizhou GMP-like Site | 2-Cyanoethyl 3-oxobutanoate Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| 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 | 询价 | 询价 | 询价 | — |
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.