6,6-Dimethoxy-6,7-dihydro-5H-imidazo[2,1-b][1,3]thiazine CAS 2138565-43-0
| CAS No. | 2138565-43-0 |
| Molecular Formula | C8H12N2O2S |
| Molecular Weight | 200.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 6,6-Dimethoxy-6,7-dihydro-5H-imidazo[2,1-b][1,3]thiazine (C8H12N2O2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 6,6-Dimethoxy-6,7-dihydro-5H-imidazo[2,1-b][1,3]thiazine (CAS 2138565-43-0), a certified reference material (molecular formula C8H12N2O2S, MW 200.26 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 | C8H12N2O2S |
| Molecular Weight | 200.26 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dimethoxy Standards
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Recommended Standards
- 6-(Thiophen-3-yl)-1H-indazole (CAS 281203-98-3)
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- Cobalt, [[2,2′-[(methylimino-κN)bis[3,1-propanediyl(nitrilo-κN)methylidyne]]bis[phenolato-κO]](2-)]-, (TB-5-22)- (CAS 15391-24-9)
- 2-(Methylsulfonyl)-5-nitrotoluene (CAS 736997-98-1)
- (1R,2R)-2-(Benzyloxy)cyclohexanamine (CAS 216394-06-8)
- 7-(3-Iodophenyl)-7-oxoheptanenitrile (CAS 898767-97-0)
- Lansoprazole Impurity 10027-0322 (CAS 1551185-85-3)
- (4AS,7S)-7-hydroxy-7-(2-hydroxypropan-2-yl)-1,4a-dimethyl-5,6,7,8-tetrahydronaphthalen-2(4aH)-one (CAS 816456-90-3)
- 1-Iodo-2-methoxy-2-methylpropane (CAS 19752-22-8)
- Des-Trp25-Tirzepatide (CAS CATO-CPTD788948)
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