4-(3,4-Dichlorophenoxy)-5-methoxy-2-(methylsulfanyl)pyrimidine CAS 338956-04-0
| CAS No. | 338956-04-0 |
| Molecular Formula | C12H10Cl2N2O2S |
| Molecular Weight | 317.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 4-(3,4-Dichlorophenoxy)-5-methoxy-2-(methylsulfanyl)pyrimidine (CAS 338956-04-0), a certified reference material (molecular formula C12H10Cl2N2O2S, MW 317.19 g/mol) for analytical method development and quality control.
Structurally, 4-(3,4-Dichlorophenoxy)-5-methoxy-2-(methylsulfanyl)pyrimidine (C12H10Cl2N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 317.19 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C12H10Cl2N2O2S |
| Molecular Weight | 317.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dichlorophenoxy Standards
- 2-(2,4-Dichlorophenoxy)-N-(3-methylisothiazol-5-yl)acetamide (CAS 1207045-93-9)
- 4-(2,4-Dichlorophenoxy)-5-methoxy-2-(methylsulfanyl)pyrimidine (CAS 338956-05-1)
- 4-(3,5-Dichlorophenoxy)-5-methoxy-2-(methylthio)pyrimidine (CAS 400084-07-3)
- 4-(2-(2,6-Dichlorophenoxy)acetyl)piperazine-1-carbaldehyde (CAS 866152-58-1)
- 3-[(2,4-Dichlorophenoxy)methyl]-4-methyl-5-(nitromethyl)-4H-1,2,4-triazole (CAS 400078-59-3)
- 2-(2,4-Dichlorophenoxy)-1-(2-methyl-1-piperidyl)-1-propanone (CAS 545354-16-3)
- 4-(3,4-Dichlorophenoxy)benzenesulfonamide (CAS 1032507-37-1)
- 5-(1-(2,4-Dichlorophenoxy)ethyl)-4-ethyl-4H-1,2,4-triazole-3-thiol (CAS 588673-89-6)
Recommended Standards
- 4-(3,4-Dichlorophenyl)-5-methanesulfonyl-2-methylpyrimidine (CAS 251307-32-1)
- 3-Cyclopropyl-1-(2,5-dichlorobenzenesulfonyl)-1H-pyrazole (CAS 956371-55-4)
- 3-Amino-4-chloro-N-(3-chloro-phenyl)-benzenesulfonamide (CAS 325732-24-9)
- 4-(Morpholine-4-carbonyl)phenylboronic Acid Pinacol Ester (CAS 656239-38-2)
- 1-Boc-3-[(2-hydroxyethyl)methylamino]-azetidine (CAS 178311-49-4)
- Naphthalen-1-ylmethanesulfonyl chloride (CAS 856199-38-7)
- 2,4-DB Impurity 1 (CAS 61961-06-6)
- 1-2-3-6-Tetra-O-benzyl-β-D-glucopyranoside (CAS 67831-42-9)
- 4-Mercapto-1H-benzo[d]imidazol-2(3H)-one (CAS 548458-10-2)
- 4-Nitro-1H-pyrazole-3,5-dicarboxylic acid (CAS 62078-43-7)
- 5-Ethyl-1,2-oxazole-3-carboxylic acid (CAS 52320-59-9)
- N-(tert-Butyl)-4,4-diphenylbutan-2-amine (CAS 15793-40-5)
- n-Allyl-1-(2-methoxyethyl)-6-oxo-1,6-dihydropyridazine-3-carboxamide (CAS 1197894-61-3)
- Semaglutide impurity 94 (CAS CATO-C4X-222694)
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