5-(3,4-Dichlorophenyl)-6-(ethoxymethyl)pyrimidine-2,4-diamine CAS 20535-58-4
| CAS No. | 20535-58-4 |
| Molecular Formula | C13H14Cl2N4O |
| Molecular Weight | 313.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-(3,4-Dichlorophenyl)-6-(ethoxymethyl)pyrimidine-2,4-diamine (C13H14Cl2N4O) contains a nitrogen-containing heterocyclic scaffold, an amide 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 313.18 g/mol, it falls into the moderately-high-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.
CATO supplies 5-(3,4-Dichlorophenyl)-6-(ethoxymethyl)pyrimidine-2,4-diamine (CAS 20535-58-4), a certified reference material (molecular formula C13H14Cl2N4O, MW 313.18 g/mol) for analytical method development and quality control.
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.
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 | C13H14Cl2N4O |
| Molecular Weight | 313.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Dichlorophenyl Standards
- Ethyl 1-(2,6-dichlorophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylate (CAS 1006441-21-9)
- 2-(2-(2,4-Dichlorophenyl)-2-oxoethyl)-5-methylcyclohexane-1,3-dione (CAS 1022423-36-4)
- (2E)-2-{[(3,4-dichlorophenyl)amino](hydroxy)methylidene}-4,4-dimethyl-3-oxopentanenitrile (CAS 1024696-02-3)
- Ethyl 1-(3,5-dichlorophenyl)-3,5-dimethyl-1H-pyrazole-4-carboxylate (CAS 1858255-30-7)
- 1-(2,4-Dichlorophenyl)-N-isopropyl-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 338398-21-3)
- 1-(2,5-dichlorophenyl)-5-methyl-N-propyl-1H-1,2,4-triazole-3-carboxamide (CAS 338398-38-2)
- 1-(2,5-dichlorophenyl)-N-isopropyl-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 338407-89-9)
- 1-(3,5-Dichlorophenyl)-5-methyl-N-propyl-1H-1,2,4-triazole-3-carboxamide (CAS 338408-43-8)
Recommended Standards
- 5-(2,5-Dichlorothiophen-3-yl)-1-(4-fluorophenyl)-1H-pyrazole (CAS 318256-32-5)
- 5-Pentafluorophenyl-1H-indole-2,3-dione (CAS 893737-60-5)
- 4-Chloro-5-(1-(4-chlorophenyl)ethoxy)-2-ethylpyridazin-3(2H)-one (CAS 88093-52-1)
- 6-(tert-Butyl)-3-((2,4-dichlorophenyl)amino)-1,2,4-triazin-5(4H)-one (CAS 898650-84-5)
- Acridine-3,6-diamine (CAS 92-62-6)
- RJR 2403 Oxalate (CAS 220662-95-3)
- 2-(2-Chloropyridin-3-yl)acetaldehyde (CAS 1335054-88-0)
- 4-Methyl-N-(2-(methylamino)-2-oxoethyl)piperidine-4-carboxamide (CAS 1316217-40-9)
- 2-Chloro-n-[4-(cyanosulfanyl)-2,6-dimethylphenyl]acetamide (CAS 85296-20-4)
- 2-(1H-Pyrazol-1-yl)thiazole (CAS 123464-69-7)
- N-(2-chlorobenzyl)-2-methyl-4-(trifluoromethyl)thiazole-5-carboxamide (CAS 338793-21-8)
- 3-(2-Methoxyphenyl)-N-(4-methylphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-60-8)
- 4-Chloro-2-propyl-pyridine hydrochloride (CAS 98420-92-9)
- Tau Peptide (401-411)-Lys-Lys trifluoroacetate salt (CAS 2022956-59-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com