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CAS 110-16-7
maleic acid
Codes: AVAT-011, AFAT-018
Application context (from source-drug indications)
ThrombocytopeniaAvatrombopag MaleateImmune thrombocytopenic purpuraAvatrombopag MaleateLiver diseaseAvatrombopag MaleateNon-small cell lung cancerAfatinib DimaleateHead and neck squamous cell carcinomaAfatinib DimaleateHead and neck cancerAfatinib DimaleateChordomaAfatinib DimaleateSquamous cell carcinomaAfatinib DimaleateGallbladder cancerAfatinib Dimaleate
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Avatrombopag Maleate | Tier C — Watch / trade | 2030 |
| Afatinib Dimaleate | 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.
1-(4-chlorothiophen-2-yl)ethanone→2-bromo-1-(4-chlorothiophen-2-yl)ethanone→thiourea→4-(4-chlorothiophen-2-yl)thiazol-2-amine→1-cyclohexylpiperazine→4-(4-chlorothiophen-2-yl)-5-(4-cyclohexylpiperazin-1-yl)thiazol-2-amine→5,6-dichloronicotinic acid→5,6-dichloro-N-(4-(4-chlorothiophen-2-yl)-5-(4-cyclohexylpiperazin-1-yl)thiazol-2-yl)nicotinamide→ethyl piperidine-4-carboxylate→ethyl 1-(3-chloro-5-((4-(4-chlorothiophen-2-yl)-5-(4-cyclohexylpiperazin-1-yl)thiazol-2-yl)carbamoyl)pyridin-2-yl)piperidine-4-carboxylate→maleic acid
3-chloro-4-fluoroaniline→(S)-tetrahydrofuran-3-ol→(S)-N-(3-chloro-4-fluorophenyl)-6-nitro-7-((tetrahydrofuran-3-yl)oxy)quinazolin-4-amine→(S)-N4-(3-chloro-4-fluorophenyl)-7-((tetrahydrofuran-3-yl)oxy)quinazoline-4,6-diamine→2-amino-4-chlorobenzoic acid→7-chloroquinazolin-4(3H)-one→7-chloro-6-nitroquinazolin-4(4aH)-one→4,7-dichloro-6-nitroquinazoline→N-(3-chloro-4-fluorophenyl)-6-nitro-7-(phenylsulfonyl)quinazolin-4-amine→2-(diethoxyphosphoryl)acetic acid→(S)-diethyl (2-((4-((3-chloro-4-fluorophenyl)amino)-7-((tetrahydrofuran-3-yl)oxy)quinazolin-6-yl)amino)-2-oxoethyl)phosphonate→2,2-diethoxy-N,N-dimethylethanamine→maleic acid
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 |
|---|---|---|---|---|---|---|
| Qualified Partner — East China API Works | 4-(4-chloro-2-thienyl)-2-ThiazolaMine Pharmaceutical Intermediates | On request | On request | On request | — | |
| Unibest Nantong cGMP Site | 4-(4-chlorothiophen-2-yl)-5-(4-cyclohexylpiperazin-1-yl)thiazol-2-amine Pharmaceutical Intermediates | On request | On request | On request | — | |
| Unibest Taizhou GMP-like Site | 1-Cyclohexylpiperazine Pharmaceutical Intermediates | On request | On request | On request | — | |
| Qualified Partner — East China API Works | 5,6-Dichloronicotinic 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.