5-[3-(3,4-Dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]-3-(3,4,5-trimethoxyphenyl)-1,2,4-oxadiazole CAS 1775439-98-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1775439-98-9 |
| Molecular Formula | C21H20N4O7 |
| Molecular Weight | 440.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-[3-(3,4-Dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]-3-(3,4,5-trimethoxyphenyl)-1,2,4-oxadiazole (CAS 1775439-98-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H20N4O7. Molecular weight: 440.41 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H20N4O7 |
| Molecular Weight | 440.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 4 |
Related Dimethoxyphenyl Standards
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Recommended Standards
- Methotrexate Impurity 11 (CAS 143873-72-7)
- 3-(((2,4-Dichlorobenzyl)sulfinyl)methyl)-4-methyl-5-((4-methylbenzyl)thio)-4H-1,2,4-triazole (CAS 344272-10-2)
- Ginkgolide C (CAS 15291-76-6)
- 2-Methyl-7-(5,5,7,7-tetramethyloctan-3-yl)quinolin-8-ol (CAS 61380-79-8)
- 3-(Furan-2-yl)-5-(trifluoromethyl)-4h-1,2,4-triazole (CAS 1393575-72-8)
- 3-(Benzyloxy)-1-(3-(trifluoromethyl)phenyl)pyridazin-4(1H)-one (CAS 146824-83-1)
- 2-(6-Oxo-1,6-dihydropyridazin-1-yl)-N-(1-phenylethyl)acetamide (CAS 1208869-62-8)
- 5-Benzyl-4,5,6,7-tetrahydroisoxazolo[4,3-c]pyridine (CAS 35005-72-2)
- 2,4-Dichloro-8-methyl-3-nitroquinoline (CAS 1026839-46-2)
- Biotinyl-CBP501 Affinity Peptide trifluoroacetate salt (CAS 2022956-39-2)
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