4-[4-(chloromethyl)-1,3-thiazol-2-yl]-2,5,6-trimethyl-2,3-dihydropyridazin-3-one CAS 950029-09-1
| CAS No. | 950029-09-1 |
| Molecular Formula | C11H20ClN3OS |
| Molecular Weight | 277.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, 4-[4-(chloromethyl)-1,3-thiazol-2-yl]-2,5,6-trimethyl-2,3-dihydropyridazin-3-one is typically white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 277.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-[4-(chloromethyl)-1,3-thiazol-2-yl]-2,5,6-trimethyl-2,3-dihydropyridazin-3-one (CAS 950029-09-1), molecular formula C11H20ClN3OS and molecular weight 277.81 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C11H20ClN3OS |
| Molecular Weight | 277.81 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related chloromethyl Standards
- 4-(Chloromethyl)-3-(2,6-difluorophenyl)-2,3-dihydro-1,3-thiazole-2-thione (CAS 866153-86-8)
- 5-(Chloromethyl)-2-(quinoxalin-2-yloxy)thiazole (CAS 1065484-78-7)
- 3-(5-(Chloromethyl)-1,2,4-oxadiazol-3-yl)-N-cyclopropylbenzamide (CAS 1119452-08-2)
- 2-(Chloromethyl)-7-(methoxymethyl)-[1,2,4]triazolo[1,5-c]quinazolin-5-amine (CAS 1616709-11-5)
- 4-(Chloromethyl)-2-[4-(trifluoromethyl)phenyl]-1,3-thiazole (CAS 135873-35-7)
- 4-(Chloromethyl)-2-(3-(trifluoromethyl)phenyl)thiazole (CAS 886629-31-8)
- 3-(Chloromethyl)-5-iodobenzonitrile (CAS 1393565-93-9)
- 2,7-Bis(chloromethyl)-9,10-dihydrophenanthrene (CAS 19399-61-2)
Recommended Standards
- 3-(3-Chlorobut-2-en-1-yl)-2,6-dimethylquinoline-4-thiol (CAS 61640-14-0)
- (2-((6-Chloropyridin-3-yl)dimethylsilyl)phenyl)methanol (CAS 1217863-45-0)
- 1H-benzo[g]indole-3-sulfonyl chloride (CAS 2231234-19-6)
- 2-(((5-Chlorothiophen-2-yl)methyl)thio)-N-isobutylacetamide (CAS 1209379-59-8)
- Manassantin B (CAS 88497-88-5)
- 2-Cyclopropyl-6-(3,5-difluorophenyl)pyrimidin-4-ol (CAS 1710471-94-5)
- tert-Butyl 2-oxa-5,8-diazaspiro[3.5]nonane-5-carboxylate (CAS 1367936-05-7)
- 6-(Thiophen-2-yl)pyridazine-3-thiol (CAS 134252-09-8)
- (E)-4-(4-(3-(piperidin-1-yl)propoxy)phenyl)but-3-en-2-one (CAS 518291-03-7)
- (4-Bromophenyl)(3-methylpiperidin-1-yl)methanone (CAS 346720-48-7)
- 2-Methoxy-5-methylpyridine (CAS 13472-56-5)
- 4-[(3-Bromophenoxy)methyl]piperidine hydrochloride (CAS 1185301-29-4)
- 3-chloro-6-fluoro-1H-indazole (CAS 1243360-12-4)
- Semaglutide Impurity 160 (x TFA Salt) (CAS CATO-C4X-2226160)
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