4,6-Dichloro-2-methylsulfonylpyrimidine CAS 4489-34-3
| CAS No. | 4489-34-3 |
| Molecular Formula | C5H4Cl2N2O2S |
| Molecular Weight | 227.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4,6-Dichloro-2-methylsulfonylpyrimidine (C5H4Cl2N2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. 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 227.07 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4,6-Dichloro-2-methylsulfonylpyrimidine (CAS 4489-34-3), molecular formula C5H4Cl2N2O2S and molecular weight 227.07 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), 4,6-Dichloro-2-methylsulfonylpyrimidine 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 | C5H4Cl2N2O2S |
| Molecular Weight | 227.07 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 2,4-Dichloro-6-(methylsulfonyl)pyrimidine (CAS 1048389-45-2)
- 4,5-Dichloro-3-methoxythiophene-2-carboxylic acid (CAS 120715-49-3)
- 2,5-Dichloro-pyridine-3-sulfonic acid amide (CAS 1208081-90-6)
- 4,5-Dichloro-2-(methylsulfonyl)pyrimidine (CAS 1803805-58-4)
- 2,5-Dichloro-4-(methylsulfonyl)pyrimidine (CAS 1806288-80-1)
- 4,6-Dichloro-5-(methylsulfonyl)pyrimidine (CAS 1806304-80-2)
- 2,4-Dichloro-5-(methylsulfonyl)pyrimidine (CAS 514842-56-9)
- Methyl 4,5-dichloro-3-hydroxythiophene-2-carboxylate (CAS 96232-70-1)
Recommended Standards
- 3-Chlorophenyl sulfurochloridate (CAS 67628-46-0)
- 4-Chlorophenyl chloranesulfonate (CAS 32117-86-5)
- 3-Chloro-4-hydroxybenzenesulfonyl chloride (CAS 25319-94-2)
- 5-Chloro-2-hydroxybenzene-1-sulfonyl chloride (CAS 25319-95-3)
- Methyl 3-(2-((5-(3,5-dimethoxyphenyl)-1,3,4-oxadiazol-2-yl)thio)acetamido)benzoate (CAS 838816-57-2)
- 5-Chloro-2-fluoro-4-methylpyrimidine (CAS 99429-16-0)
- 4-(10-Methyl-9,10-dihydroacridin-9-yl)aniline (CAS 57041-52-8)
- (3-Hydroxyazetidin-1-yl)(4-methyl-1,2,3-thiadiazol-5-yl)methanone (CAS 1340451-05-9)
- 4-(4-Ethoxyphenyl)pyridine (CAS 4357-31-7)
- Ethyl 2-(4-(3-chlorophenyl)piperazin-1-yl)-5-(thiophen-2-yl)-1H-pyrrole-3-carboxylate (CAS 478050-20-3)
- 27-Nor-25-ketocholesterol (CAS 7494-34-0)
- (6-(Bromomethyl)-7-chloro-3-methyl-4-oxo-3,4-dihydroquinazolin-2-yl)methyl acetate (CAS 289686-86-8)
- 2-((5-Chloro-2-methoxyphenyl)amino)acetamide (CAS 923137-95-5)
- Fibrinopeptide B (human) (CAS 36204-23-6)
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