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CAS 38239-45-1
5-Bromo-3-methylthiophene-2-carboxylic acid
Codes: (III)700647-3-a
Application context (from source-drug indications)
蠕形螨性睑缘炎Lotilaner螨虫感染Lotilaner莱姆病LotilanerRosaceaLotilaner睑板腺功能障碍Lotilaner
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Lotilaner | 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-Formyl-3-methylthiophene→5-Bromo-3-methylthiophene-2-carbaldehyde→5-Bromo-3-methylthiophene-2-carboxylic acid→Nitrocarbol→3-Methyl-5-(nitromethyl)thiophene-2-carboxylic acid→5-Carboxy-4-methylthiophene-2-carbonitrile oxide→1,2,3-Trichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene→3-Methyl-5-[5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]thiophene-2-carboxylic acid→2-Amino-N-(2,2,2-trifluoroethyl)acetamide hydrochloride
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 | 2-bromo-3-methyl-5-acetylthiophene Pharmaceutical Intermediates | On request | On request | On request | — | |
| Unibest Taizhou GMP-like Site | methyl 5-acetyl-3-methylthiophene-2-carboxylate Pharmaceutical Intermediates | On request | On request | On request | — | |
| Qualified Partner — East China API Works | 5-acetyl-3-methyl-2-Thiophenecarboxylic acid 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.