Methyl 5-(5-bromo-2-methoxyphenyl)-2-ethyl-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate CAS 618075-71-1
| CAS No. | 618075-71-1 |
| Molecular Formula | C18H19BrN2O4S |
| Molecular Weight | 439.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyl 5-(5-bromo-2-methoxyphenyl)-2-ethyl-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Methyl 5-(5-bromo-2-methoxyphenyl)-2-ethyl-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 618075-71-1) is a high-purity analytical reference standard with the molecular formula C18H19BrN2O4S and a molecular weight of 439.32 g/mol.
Methyl 5-(5-bromo-2-methoxyphenyl)-2-ethyl-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (C18H19BrN2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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).
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 | C18H19BrN2O4S |
| Molecular Weight | 439.32 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 3-(2-Bromophenyl)-5-(((6-(p-tolyl)pyridazin-3-yl)thio)methyl)-1,2,4-oxadiazole (CAS 1114944-96-5)
- 1,1-Dimethylethyl (2S,4R)-2-formyl-4-[[(4-methylphenyl)sulfonyl]oxy]-1-pyrrolidinecarboxylate (CAS 385440-70-0)
- 4,5,6-Trichloro-2-(2-chloropyridin-4-yl)pyrimidine (CAS 1823566-41-1)
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- 3-(Morpholinosulfonyl)benzoyl chloride (CAS 854166-21-5)
- D-[13C5]Xylose (CAS 1262683-58-8)
- Fmoc-3-cyano-L-phenylalanine (CAS 205526-36-9)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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