6-Methoxy-3,4-dihydro-2H-benzo[e][1,3]thiazine CAS 1378821-84-1
| CAS No. | 1378821-84-1 |
| Molecular Formula | C9H11NOS |
| Molecular Weight | 181.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Methoxy-3,4-dihydro-2H-benzo[e][1,3]thiazine (C9H11NOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies 6-Methoxy-3,4-dihydro-2H-benzo[e][1,3]thiazine (CAS 1378821-84-1), a certified reference material (molecular formula C9H11NOS, MW 181.25 g/mol) for analytical method development and quality control.
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.
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 | C9H11NOS |
| Molecular Weight | 181.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 3-fluoronaphthalene-1-carbonitrile (CAS 13772-85-5)
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- 1-(2-Amino-5,6-dihydro-4H-cyclopenta[b]thien-3-yl)ethanone (CAS 1368328-51-1)
- (S)-1-(3-fluorophenyl)-2,2-dimethylpropan-1-amine (CAS 1388128-13-9)
- 4-(3-Bromo-2-methylpropyl)-2-methylthiophene (CAS 1489317-45-4)
- 1-(2-Fluoro-3-methylphenyl)propan-1-one (CAS 1261675-49-3)
- 3-((3,4-Dichlorobenzyl)sulfinyl)-4-ethyl-5-((3-(trifluoromethyl)phenoxy)methyl)-4H-1,2,4-triazole (CAS 956961-74-3)
- (E)-4-((((4-chlorobenzyl)oxy)imino)methyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carbonitrile (CAS 338415-14-8)
- 2-{[(2,4-dichlorophenyl)methyl]sulfanyl}-5-methoxy-4-(4-methoxyphenoxy)pyrimidine (CAS 339275-92-2)
- 4-((3-Bromo-4-hydroxy-5-methoxybenzylidene)amino)-3-(3-chlorophenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478255-24-2)
- 6-Chloro-5-methyl-1H-indazole (CAS 1000341-02-5)
- 5-(1H-benzo[d]imidazol-2-yl)-2-methylaniline (CAS 292644-33-8)
- tert-Butyl 1-amino-3-azabicyclo[3.1.0]hexane-3-carboxylate (CAS 489438-95-1)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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