5-(Benzenesulfonyl)-4-(4-chlorophenyl)-2-(pyridin-2-yl)pyrimidine CAS 339107-25-4
| CAS No. | 339107-25-4 |
| Molecular Formula | C21H14ClN3O2S |
| Molecular Weight | 407.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-(Benzenesulfonyl)-4-(4-chlorophenyl)-2-(pyridin-2-yl)pyrimidine (CAS 339107-25-4), molecular formula C21H14ClN3O2S and molecular weight 407.87 g/mol, is a CATO reference standard with documented purity and traceability.
5-(Benzenesulfonyl)-4-(4-chlorophenyl)-2-(pyridin-2-yl)pyrimidine (C21H14ClN3O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C21H14ClN3O2S |
| Molecular Weight | 407.87 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Benzenesulfonyl Standards
- 4-(Benzenesulfonyl)-4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]butanoic acid (CAS 338407-19-5)
- 5-(Benzenesulfonyl)-4-(3,4-dichlorophenyl)-N,N-dimethylpyrimidin-2-amine (CAS 339107-76-5)
- 3'-(Benzenesulfonyl)-1'-[3-(1H-imidazol-1-yl)propyl]-4',5'-dimethyl-1'H-1,2'-bipyrrole (CAS 860648-67-5)
- 7-(Benzenesulfonyl)-6-bromo-2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine (CAS 1131992-26-1)
- 5-(Benzenesulfonyl)-4-(2-chlorophenyl)-2-phenylpyrimidine (CAS 339107-55-0)
- 4-(Benzenesulfonyl)-4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]butanamide (CAS 338406-95-4)
- 1-(Benzenesulfonyl)-N'-[(1E)-(4-chlorophenyl)methylidene]piperidine-4-carbohydrazide (CAS 478030-62-5)
- (2E)-2-(Benzenesulfonyl)-3-[6-(4-methylphenyl)imidazo[2,1-b][1,3]thiazol-5-yl]prop-2-enenitrile (CAS 691883-96-2)
Recommended Standards
- 5-(4-Chlorobenzenesulfonyl)-4-phenyl-2-(pyridin-3-yl)pyrimidine (CAS 339110-20-2)
- Bis(2-quinolinecarboxylato-κN1,κO2)copper (CAS 24476-79-7)
- (R)-2-Cl-Phox-iPr (CAS 2757082-52-1)
- Ticagrelor Impurity 144 (CAS CATO-C4X-1093144)
- (2,5-Dimethylfuran-3-yl)methanol (CAS 1003-96-9)
- (Z)-2-NonenedioicAcid (CAS 104360-82-9)
- Tert-butyl 6-formyl-1,3-dihydro-2H-pyrrolo[3,4-c]pyridine-2-carboxylate (CAS 1824323-60-5)
- 1-(3-Bromophenyl)-2-cyclopropylethan-1-one (CAS 1370656-84-0)
- 4-((4-Fluorophenoxy)methyl)benzamide (CAS 1090406-13-5)
- 1-(4-Tert-butylphenyl)-2-chloropropan-1-one (CAS 59477-82-6)
- Methyl 4-(2,3-dichloropyridin-4-yl)benzoate (CAS 1160474-76-9)
- ethyl 1H,2H,3H,4H-pyrrolo[1,2-a]pyrazine-1-carboxylate (CAS 1242850-22-1)
- Allyl Anthranilate (0.5 mL/ampule; 5 ampules) (CAS 7493-63-2)
- Semaglutide Impurity 13 (CAS CATO-C4X-222613)
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