5-(4-Hydroxy-5,6,7,8-tetrahydrophthalazin-1-yl)-2-methylbenzenesulfonyl chloride CAS 1160264-20-9
| CAS No. | 1160264-20-9 |
| Molecular Formula | C15H15ClN2O3S |
| Molecular Weight | 338.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(4-Hydroxy-5,6,7,8-tetrahydrophthalazin-1-yl)-2-methylbenzenesulfonyl chloride is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-(4-Hydroxy-5,6,7,8-tetrahydrophthalazin-1-yl)-2-methylbenzenesulfonyl chloride (CAS 1160264-20-9), molecular formula C15H15ClN2O3S and molecular weight 338.81 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(4-Hydroxy-5,6,7,8-tetrahydrophthalazin-1-yl)-2-methylbenzenesulfonyl chloride (C15H15ClN2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 338.81 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C15H15ClN2O3S |
| Molecular Weight | 338.81 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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- Itraconazole Impurity 97 (CAS CATO-C4X-149797)
- 1-Aminopyridin-1-ium iodide 1-Aminopyridinium iodide 6295-87-0 MFCD00051893 (CAS 6295-87-0)
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- 3-Cyclopentyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (CAS 1397718-39-6)
- (4,5,6,7-Tetrahydro-1,3-benzothiazol-2-yl)methanol (CAS 40516-71-0)
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