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CAS 2215-77-2
4-phenoxybenzoic acid4-(Phenyloxy)benzoic acidp-Phenoxybenzoic acid
Codes: IBRT-001, (I)461018-4-a, (III)461018-33-a, ZANU-001
Physicochemical properties & identification
- Appearance
- White to off-white crystalline powder
- Solubility
- Practically insoluble in water; soluble in alcohols, DMF, DMSO and aqueous alkali (salt formation)
- Storage
- Ambient temperature, dry, protected from light
Applications
- · Starting block on the zanubrutinib (BTK inhibitor) route: source of the 4-phenoxyphenyl fragment
- · Intermediate for liquid-crystal materials and agrochemicals (aryloxybenzoylurea insecticides)
Application context (from source-drug indications)
Waldenström macroglobulinaemiaIbrutinibChronic lymphocytic leukaemiaIbrutinibMantle cell lymphomaIbrutinibGraft-versus-host diseaseIbrutinibWaldenström macroglobulinaemiaZanubrutinibChronic lymphocytic leukaemiaZanubrutinibFollicular lymphomaZanubrutinibMarginal zone B-cell lymphomaZanubrutinibMantle cell lymphomaZanubrutinib
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Ibrutinib | Tier A — Act now | 2027 |
| Zanubrutinib | Tier A — Act now | 2031 |
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.
4-phenoxybenzoic acid→2-(hydroxy(4-phenoxyphenyl)methylene)malononitrile→2-(methoxy(4-phenoxyphenyl)methylene)malononitrile→5-amino-3-(4-phenoxyphenyl)-1H-pyrazole-4-carbonitrile→3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine→(S)-tert-butyl 3-hydroxypiperidine-1-carboxylate→(R)-tert-butyl 3-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidine-1-carboxylate→acryloyl chloride→1H-pyrazolo[3,4-d]pyrimidin-4-amine→3-iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine→tert-butyl 4-(((6-amino-5-chloropyrimidin-4-yl)amino)methyl)piperidine-1-carboxylate
4-(Phenyloxy)benzoic acid→Carbonochloridic acid ethyl ester→Ethyl 4-phenoxybenzoyl carbonate→1,1-Dicyanomethane→3-(4-Phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine→(4-Phenoxybenzoyl)malononitrile→[Chloro(4-phenoxyphenyl)methylene]malononitrile→3-Amino-4-cyano-5-(4-phenoxyphenyl)pyrazole→Formamidine acetate→3-Chloro-1H-pyrazolo[3,4-d]pyrimidin-4-amine→3-Bromo-1H-pyrazolo[3,4-d]pyrimidin-4-amine→3-Iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine→4-Amino-1H-pyrazolo[3,4-d]pyrimidin-3-ylmethanesulfonate
4-phenoxybenzoic acid→4-phenoxybenzoyl chloride→2-(hydroxy(4-phenoxyphenyl)methylene)malononitrile→2-(methoxy(4-phenoxyphenyl)methylene)malononitrile→5-amino-3-(4-phenoxyphenyl)-1H-pyrazole-4-carbonitrile→(Z)-tert-butyl 4-(3-(dimethylamino)acryloyl)piperidine-1-carboxylate→tert-butyl 4-(3-cyano-2-(4-phenoxyphenyl)pyrazolo[1,5-a]pyrimidin-7-yl)piperidine-1-carboxylate→tert-butyl 4-(3-cyano-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidine-1-carboxylate→tert-butyl 4-(3-carbamoyl-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-7-yl)piperidine-1-carboxylate→2-(4-phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide 2,2,2-trifluoroacetate→7-(1-acryloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide→(S)-7-(1-acryloylpiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide
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 Taizhou GMP-like Site | 4-Phenoxybenzoic acid Pharmaceutical Intermediates | On request | On request | On request | — |
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