6-Bromo-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one CAS 352328-87-1
| CAS No. | 352328-87-1 |
| Molecular Formula | C8H6BrN3OS |
| Molecular Weight | 272.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6-Bromo-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one.
6-Bromo-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one (CAS 352328-87-1), molecular formula C8H6BrN3OS and molecular weight 272.12 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H6BrN3OS, 6-Bromo-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 272.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C8H6BrN3OS |
| Molecular Weight | 272.12 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Bromo Standards
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Recommended Standards
- 5-(4-Amino-3-bromophenyl)-1,3,4-oxadiazole-2-thiol (CAS 887584-46-5)
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- 4-Amino-2-bromothieno[3,2-c]pyridine-7-carboxamide (CAS 690635-45-1)
- n-[(2-chloro-6-fluorophenyl)methyl]-n-methylsulfamoyl chloride (CAS 923688-16-8)
- ((2R,3S,4S,5S)-3-Acetoxy-5-methoxy-4-(trifluoromethyl)tetrahydrofuran-2-yl)methyl acetate (CAS 159945-02-5)
- N-Fmoc-(+/-)-3-aminononanoic acid (CAS 1335041-93-4)
- 3-[(2,4-Difluorophenyl)carbamoyl]phenyl N,N-dimethylsulfamate (CAS 338405-84-8)
- (2E,4Z,7Z)-Trideca-2,4,7-trienal (CAS 13552-96-0)
- (6R,8aR)-octahydroindolizine-6-carboxylic acid (CAS 1932417-67-8)
- N-(3-(Dimethylamino)-4-hydroxyphenyl)methanesulfonamide (CAS 1243286-59-0)
- (S)-4-((1,4,7,10-Tetrakis(2-(tert-butoxy)-2-oxoethyl)-1,4,7,10-tetraazacyclododecan-2-yl)methyl)benzoic acid (CAS 1713269-98-7)
- 4-(2-Ethylbutanoyl)-1H-pyrrole-2-carboxylic acid (CAS 478249-22-8)
- (1-(5-Methylthiophen-2-yl)ethyl)hydrazine (CAS 1016511-14-0)
- Semaglutide impurity 331 (CAS CATO-C4X-2226231)
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