7-{3-[(2,4-dichlorophenyl)methoxy]phenyl}-2-methylpyrazolo[1,5-a]pyrimidine CAS 478046-61-6
| CAS No. | 478046-61-6 |
| Molecular Formula | C20H15Cl2N3O |
| Molecular Weight | 384.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 384.26 g/mol gives 7-{3-[(2,4-dichlorophenyl)methoxy]phenyl}-2-methylpyrazolo[1,5-a]pyrimidine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-{3-[(2,4-dichlorophenyl)methoxy]phenyl}-2-methylpyrazolo[1,5-a]pyrimidine (CAS 478046-61-6) is a high-purity analytical reference standard with the molecular formula C20H15Cl2N3O and a molecular weight of 384.26 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 7-{3-[(2,4-dichlorophenyl)methoxy]phenyl}-2-methylpyrazolo[1,5-a]pyrimidine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 384.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
As a certified reference material (CRM), 7-{3-[(2,4-dichlorophenyl)methoxy]phenyl}-2-methylpyrazolo[1,5-a]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 | C20H15Cl2N3O |
| Molecular Weight | 384.26 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related dichlorophenyl Standards
- 2-(2,4-Dichlorophenyl)-1-[(4-methylphenyl)methoxy]-1H-imidazo[4,5-b]pyridine (CAS 338978-59-9)
- 7-{4-[(2,4-dichlorophenyl)methoxy]phenyl}-2-methylpyrazolo[1,5-a]pyrimidine (CAS 477889-42-2)
- (3Z)-4-[(3,4-Dichlorophenyl)amino]-3-(4-methylbenzenesulfonyl)but-3-en-2-one (CAS 1025138-31-1)
- 6-(2,6-Dichlorophenyl)-8-methyl-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7(8H)-one (CAS 185039-48-9)
- 2-((5-(2,4-Dichlorophenyl)-4-(furan-2-ylmethyl)-4H-1,2,4-triazol-3-yl)thio)acetic acid (CAS 537017-64-4)
- Methyl 2-{[2-(2,4-dichlorophenyl)-2-(methoxyimino)ethyl]sulfanyl}benzenecarboxylate (CAS 338391-92-7)
- 2-(2,4-Dichlorophenyl)-2-[4-(4-fluorobenzoyl)phenyl]acetonitrile (CAS 339115-06-9)
- Methyl 1-((3,4-dichlorophenyl)sulfonyl)-1H-indole-2-carboxylate (CAS 220664-09-5)
Recommended Standards
- 5-(5,6-Dichloro-1-(2-methylbenzyl)-1H-benzo[d]imidazol-2-yl)pyridin-2(1H)-one (CAS 338774-03-1)
- 4-(4-Boc-Piperazinosulfonyl)-3-methylphenylboronic acid (CAS 2377611-61-3)
- Boc-(S)-α-(2-bromo-benzyl)-proline (CAS 706806-73-7)
- 4-(2-Bromophenyl)-1-(tert-Butoxycarbonyl)piperidine-4-carboxylicacid (CAS 920023-52-5)
- 3-(4-Chlorophenyl)-6,7-diphenyl-2H-oxazolo[3,2-a][1,3,5]triazine-2,4(3H)-dione (CAS 35629-68-6)
- Boc-N-Me-D-His(Boc)-OH (CAS 2044710-77-0)
- 1,5-diethoxy-pentane (CAS 90724-89-3)
- 1-(3-Amino-4-methoxyphenyl)ethanone (CAS 6318-64-5)
- 2-[(1R,2S)-2-hydroxycyclohexyl]acetic acid (CAS 75364-90-8)
- 2-(4-Bromo-3-(1-bromo-2-oxopropyl)phenyl)acetic acid (CAS 1804247-85-5)
- 3,4-Dichloro-5-(difluoromethoxy)benzylamine (CAS 1806350-45-7)
- Ethyl 2-(diethylamino)acetate (CAS 2644-21-5)
- 3-(1H-Pyrazol-3-yl)propiolic acid (CAS 1927873-40-2)
- Des-Ser34-Gly33Tirzepatide (CAS CATO-CPTD788941)
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