6-Chloro-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide CAS 19477-31-7
| CAS No. | 19477-31-7 |
| Molecular Formula | C7H5ClN2O2S |
| Molecular Weight | 216.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Chloro-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 19477-31-7), molecular formula C7H5ClN2O2S and molecular weight 216.64 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6-Chloro-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (C7H5ClN2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 216.64 g/mol, it falls into the medium-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.
As a certified reference material (CRM), 6-Chloro-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H5ClN2O2S |
| Molecular Weight | 216.64 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4H-1,2,4-Benzothiadiazine, 7-chloro-, 1,1-dioxide (CAS 19477-12-4)
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- Indapamide Impurity 9 (CAS 1939-76-0)
- 1-(3-Chloro-5-fluoro-2-hydroxyphenyl)butan-1-one (CAS 2585-70-8)
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- 1-Morpholino-2-(p-tolylthio)ethan-1-one (CAS 392313-31-4)
- N-2-Me-Phe-OH.Camphorsulfonic acid (CAS 28385-43-5)
- (4-Bromophenyl)(4-methoxy-3,5-dimethylphenyl)methanone (CAS 844879-14-7)
- Ethyl 7-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 54132-35-3)
- 1-(3,3-Difluorocyclobutyl)-1H-pyrazol-4-amine (CAS 2168695-26-7)
- Methyl (S)-2-((tert-butoxycarbonyl)amino)-3-(4'-cyano-[1,1'-biphenyl]-4-yl)propanoate (CAS 220587-22-4)
- 3-{5-chloro-2-[(4-fluorophenyl)methoxy]phenyl}prop-2-enoic acid (CAS 938278-28-5)
- Methyl (S)-2-amino-2-methylpent-4-enoate (CAS 88820-87-5)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788694)
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