(Z)-2-chloro-N-(3-methyl-5,5-dioxidotetrahydrothieno[3,4-d]thiazol-2(3H)-ylidene)acetamide CAS 929824-31-7
| CAS No. | 929824-31-7 |
| Molecular Formula | C8H11ClN2O3S2 |
| Molecular Weight | 282.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 282.77 g/mol gives (Z)-2-chloro-N-(3-methyl-5,5-dioxidotetrahydrothieno[3,4-d]thiazol-2(3H)-ylidene)acetamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(Z)-2-chloro-N-(3-methyl-5,5-dioxidotetrahydrothieno[3,4-d]thiazol-2(3H)-ylidene)acetamide (CAS 929824-31-7), molecular formula C8H11ClN2O3S2 and molecular weight 282.77 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (Z)-2-chloro-N-(3-methyl-5,5-dioxidotetrahydrothieno[3,4-d]thiazol-2(3H)-ylidene)acetamide (C8H11ClN2O3S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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. 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 | C8H11ClN2O3S2 |
| Molecular Weight | 282.77 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 methanol, ethanol, DMSO |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 1-Ethylpyrrolidin-3-yl (2-chloro-6-methylphenyl)carbamate (CAS 31755-10-9)
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- 2-(Chloromethyl)-5-(thiophen-2-yl)-3H,4H-thieno[2,3-d]pyrimidin-4-one (CAS 255378-83-7)
- Tert-butyl 6-chloro-3,3-dimethyl-2,3-dihydro-1H-pyrrolo[3,2-b]pyridine-1-carboxylate (CAS 1604818-10-1)
- (Z)-3-(hydroxyimino)-1-phenylquinoline-2,4(1H,3H)-dione (CAS 36412-08-5)
- Ethyl((tetrahydrofuran-2-yl)methyl)sulfamoyl chloride (CAS 1251245-96-1)
- 3-(5-(3-Fluorophenyl)furan-2-yl)propanoic acid (CAS 1269527-50-5)
- (4S,4'S)-2,2'-(1,3-Bis(3,5-di-tert-butyl-4-methoxyphenyl)propane-2,2-diyl)bis(4-cyclohexyl-4,5-dihydrooxazole) (CAS 2923490-42-8)
- (3,4,5-Tris(dodecyloxy)phenyl)methanol (CAS 138433-00-8)
- 1-(4-Aminophenyl)cyclobutanecarbonitrile (CAS 811803-25-5)
- N,N-Dimethyl-4-((4-((trimethylsilyl)-ethynyl)phenyl)ethynyl)aniline (CAS 910467-59-3)
- Ethyl 2-(trifluoromethyl)imidazo[1,2-a]pyrazine-3-carboxylate (CAS 420119-54-6)
- Formoterol impurity 115 (CAS CATO-C4X-1525115)
- Tau Peptide (306-317) trifluoroacetate salt (CAS 1003007-59-7)
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