2-(2-bromoethyl)-3,4-dihydro-2H-1,4-benzothiazin-3-one CAS 139331-19-4
| CAS No. | 139331-19-4 |
| Molecular Formula | C10H10BrNOS |
| Molecular Weight | 272.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(2-bromoethyl)-3,4-dihydro-2H-1,4-benzothiazin-3-one 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.
2-(2-bromoethyl)-3,4-dihydro-2H-1,4-benzothiazin-3-one (CAS 139331-19-4) is a high-purity analytical reference standard with the molecular formula C10H10BrNOS and a molecular weight of 272.16 g/mol.
Structurally, 2-(2-bromoethyl)-3,4-dihydro-2H-1,4-benzothiazin-3-one (C10H10BrNOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution. 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 272.16 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C10H10BrNOS |
| Molecular Weight | 272.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2-Bromo-6-propoxybenzo[d]thiazole (CAS 1387563-46-3)
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- 2-Methyl-5-p-tolylsulfamoyl-benzoic acid (CAS 104941-56-2)
- 2-Chloro-4-methylquinoline-3-carbonitrile (CAS 101617-94-1)
- 2-(4-((Cyclopropylmethyl)amino)phenyl)ethan-1-ol (CAS 1247129-42-5)
- 2-(tert-Butyl)-3-cyclopropoxy-6-nitropyridine (CAS 1243355-79-4)
- 1-(5-Methyl-2,3-dihydro-1H-pyrrolizin-7-yl)ethanone (CAS 97073-06-8)
- α,α,α-Trifluorotoluene-d5 (CAS 164112-72-5)
- 5-(4-Bromophenyl)isoxazol-3-ol (CAS 1501326-27-7)
- Acetyl-Tau Peptide (273-284) amide trifluoroacetate salt (CAS 1684399-52-7)
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