4-Chloro-6-ethoxy-2-(methylsulfonyl)pyrimidine CAS 142596-33-6
| CAS No. | 142596-33-6 |
| Molecular Formula | C7H9ClN2O3S |
| Molecular Weight | 236.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Chloro-6-ethoxy-2-(methylsulfonyl)pyrimidine (C7H9ClN2O3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 236.68 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
4-Chloro-6-ethoxy-2-(methylsulfonyl)pyrimidine (CAS 142596-33-6), molecular formula C7H9ClN2O3S and molecular weight 236.68 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Chloro-6-ethoxy-2-(methylsulfonyl)pyrimidine 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 | C7H9ClN2O3S |
| Molecular Weight | 236.68 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 methanol, ethanol, DMSO, water |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 6-Chloro-3-(thiophen-2-yl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 1032705-56-8)
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- 7-chloro-[1,3]thiazolo[4,5-b]quinoxalin-2-amine (CAS 120317-27-3)
- 5-Chloro-4-ethoxypyridine-3-sulfonamide (CAS 1352482-93-9)
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Recommended Standards
- 5-(Dimethylcarbamoyl)-1h-pyrrole-3-sulfonyl chloride (CAS 1489410-74-3)
- 2-(3-Chlorophenyl)-4-isocyanato-1,3-thiazole (CAS 868755-59-3)
- 1-(Oxolan-3-yl)-1h-pyrazole-4-sulfonyl chloride (CAS 1339213-79-4)
- 2-Cyanoethyl-N,N-diisopropylchlorophosphoramidite (CAS 89992-70-1)
- 1-(6-(3,4-Dihydroquinolin-1(2H)-yl)-4-methylpyridin-3-yl)ethanamine (CAS 1355230-59-9)
- 3,4-Dimethoxyphenethyl alcohol (CAS 7417-21-2)
- Methyl 3-(2H-1,3-benzodioxol-5-yl)-3-{[(4-methylphenyl)carbamothioyl]amino}propanoate (CAS 866144-45-8)
- 2-(1H-pyrazol-1-yl)-4-(trifluoromethyl)pyrimidine (CAS 1227955-10-3)
- (4-Methoxy-1H-indazol-5-yl)boronic acid (CAS 1887059-96-2)
- (3-(Furan-2-yl)-3-phenylprop-1-yn-1-yl)trimethylsilane (CAS 919283-69-5)
- (4-Methoxyphenyl)trimethylsilane (CAS 877-68-9)
- (4-((Diethylamino)methyl)phenyl)methanol (CAS 91271-57-7)
- 7-amino-2,3-dihydro-1,4-benzodioxine-5-carboxylic acid (CAS 66410-92-2)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
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