6-Bromo-7-methyl-5H-thiazolo[3,2-a]pyrimidin-5-one CAS 70825-45-5
| CAS No. | 70825-45-5 |
| Molecular Formula | C7H5BrN2OS |
| Molecular Weight | 245.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
6-Bromo-7-methyl-5H-thiazolo[3,2-a]pyrimidin-5-one (CAS 70825-45-5) is a high-purity analytical reference standard with the molecular formula C7H5BrN2OS and a molecular weight of 245.10 g/mol.
The molecular framework of 6-Bromo-7-methyl-5H-thiazolo[3,2-a]pyrimidin-5-one (C7H5BrN2OS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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.
As a certified reference material (CRM), 6-Bromo-7-methyl-5H-thiazolo[3,2-a]pyrimidin-5-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.
Physical & Chemical Properties
| Molecular Formula | C7H5BrN2OS |
| Molecular Weight | 245.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1977 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 6-Bromo-4-methoxythieno[3,2-d]pyrimidine (CAS 215927-37-0)
- 7-Bromo-1H-pyrido[2,3-b][1,4]thiazin-2(3H)-one (CAS 438622-20-9)
- 6-Bromo-4-methoxythiazolo[4,5-c]pyridine (CAS 2791314-20-8)
- 7-Bromo-4-methoxythieno[3,2-d]pyrimidine (CAS 872190-91-5)
- 6-(Bromomethyl)pyridin-3-ol (CAS 185389-84-8)
- tert-Butyl (2-nitro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (CAS 1404561-06-3)
- 2-[(Piperidin-4-yl)methyl]-6-(1H-pyrazol-1-yl)-2,3-dihydropyridazin-3-one (CAS 2097936-25-7)
- 2-(Bromomethyl)-2-methyltetrahydrofuran (CAS 85870-23-1)
- 2-Chloro-4-(2-fluoropropan-2-yl)pyridine (CAS 1654745-25-1)
- 2-(isothiocyanatomethyl)oxolane (CAS 36810-87-4)
- (6,7-Dimethoxy-3-methylbenzofuran-2-yl)(4-methylpiperazin-1-yl)methanone hydrochloride (CAS 40713-19-7)
- (R)-1-(4-bromo-3-methylphenyl)pentan-1-amine (CAS 1259601-51-8)
- 2-Methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 58156-40-4)
- His-Cyclic-Semaglutide (CAS CATO-C4X-2226182)
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