8-Chloro-2-(methylsulfonyl)pyrido[3,4-d]pyrimidine, 97% CAS 1578246-63-5
| CAS No. | 1578246-63-5 |
| Molecular Formula | C8H6ClN3O2S |
| Molecular Weight | 243.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 243.67 g/mol gives 8-Chloro-2-(methylsulfonyl)pyrido[3,4-d]pyrimidine, 97% distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
8-Chloro-2-(methylsulfonyl)pyrido[3,4-d]pyrimidine, 97% (CAS 1578246-63-5), molecular formula C8H6ClN3O2S and molecular weight 243.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H6ClN3O2S, 8-Chloro-2-(methylsulfonyl)pyrido[3,4-d]pyrimidine, 97% contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 243.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 8-Chloro-2-(methylsulfonyl)pyrido[3,4-d]pyrimidine, 97% under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H6ClN3O2S |
| Molecular Weight | 243.67 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 8-Chloro-5-isoquinolinesulfonic Acid (CAS 1246816-17-0)
- 3-Chloro-2-(methylsulfonyl)pyrido[2,3-b]pyrazine (CAS 1956365-93-7)
- 2-(5-Chloro-2-oxobenzo[d]thiazol-3(2H)-yl)acetic acid (CAS 54769-25-4)
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Recommended Standards
- 3-(2-Chlorothiophen-3-yl)-5-methylisoxazole-4-carboxylic acid (CAS 14483-57-9)
- 1-Phenyl-1H-1,2,3-triazole-5-sulfonyl chloride (CAS 1600335-61-2)
- 3-(5-Chlorothiophen-2-yl)-5-methylisoxazole-4-carboxylic acid (CAS 14345-96-1)
- 3-Acetyl-5-cyanobenzenesulfonyl chloride (CAS 1393562-91-8)
- (R)-tert-Butyl 3-(pyrazin-2-ylamino)piperidine-1-carboxylate (CAS 1421047-07-5)
- 4-(2-azidoethoxy)-2-(2,6-dioxo-3-piperidyl)isoindoline-1,3-dione (CAS 2411098-90-1)
- Ethyl 3-(4-cyano-2-methoxyphenoxy)propanoate (CAS 1094637-27-0)
- 3-(Thiomorpholine-4-carbonyl)aniline (CAS 1042776-72-6)
- Sitafloxacin Impurity 33 (CAS CATO-C4X-115533)
- 4-Bromo-2,5-dichlorobenzonitrile (CAS 1349717-20-9)
- Fatty acids, C12-21 and C18-unsatd., 2,2,6,6-tetramethyl-4-piperidinyl esters (CAS 167078-06-0)
- Indenolol (CAS 60607-68-3)
- (dimethyl-1,3-oxazol-5-yl)methanamine dihydrochloride (CAS 915787-99-4)
- Semaglutide impurity 42 (CAS CATO-C4X-222642)
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