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CAS 55809-53-5
5-(tert-butyl)-3-isocyanatoisoxazole
Codes: QUIZ-007
Application context (from source-drug indications)
Acute myeloid leukaemiaQuizartinibLeukaemiaQuizartinibMyeloid leukaemiaQuizartinibMyelodysplastic syndromeQuizartinibChronic myelomonocytic leukaemiaQuizartinibHepatic function declineQuizartinib
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Quizartinib | 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-aminobenzo[d]thiazol-6-ol→2-bromo-1-(4-nitrophenyl)ethanone→2-(4-nitrophenyl)benzo[d]imidazo[2,1-b]thiazol-7-ol→4-(2-chloroethyl)morpholine hydrochloride→4-(2-((2-(4-nitrophenyl)benzo[d]imidazo[2,1-b]thiazol-7-yl)oxy)ethyl)morpholine→4-(7-(2-morpholinoethoxy)benzo[d]imidazo[2,1-b]thiazol-2-yl)aniline→5-(tert-butyl)-3-isocyanatoisoxazole
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 | (5-tert-butyl-isoxazol-3-yl)-carbaMic acid phenyl ester Pharmaceutical Intermediates | On request | On request | On request | — | |
| Unibest Taizhou GMP-like Site | 4-(2-Chloroethyl)morpholine hydrochloride Pharmaceutical Intermediates | On request | On request | On request | — | |
| Qualified Partner — East China API Works | 3-Amino-5-tert-butylisoxazole 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.