1-Butyl-3-hydroxy-3-(5-phenyl-1,3,4-oxadiazol-2-yl)indolin-2-one CAS 730972-91-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 730972-91-5 |
| Molecular Formula | C20H19N3O3 |
| Molecular Weight | 349.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-Butyl-3-hydroxy-3-(5-phenyl-1,3,4-oxadiazol-2-yl)indolin-2-one (CAS 730972-91-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H19N3O3. Molecular weight: 349.38 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C20H19N3O3 |
| Molecular Weight | 349.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 3 |
Related Butyl Standards
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Recommended Standards
- 1-Benzyl-N-(3,4-dimethylphenyl)-6-hydroxy-2-oxo-1,2-dihydropyrimidine-4-carboxamide (CAS 338412-52-5)
- 1-Piperazinecarboxylic acid, 4-[2-(4-nitrophenyl)acetyl]-, 1,1-dimethylethyl ester (CAS 643087-38-1)
- 10-((4-Hydroxypiperidin-1-yl)methyl)chromeno[4,3,2-de]phthalazin-3(2H)-one (CAS 902128-92-1)
- 1-(1-Chlorobutan-2-yl)-3-fluorobenzene (CAS 1521990-52-2)
- 2-(1-Amino-4-(tert-butoxycarbonylamino)cyclohexyl)acetic acid (CAS 1188263-93-5)
- Lefamulinum Impurity 43 (CAS CATO-C4X-304743)
- 3-(3,4-Dimethylphenyl)prop-2-yn-1-ol (CAS 26801-34-3)
- 1-(2-Methoxybenzyl)-1H-benzo[d]imidazole (CAS 489462-19-3)
- 2-(4-Methylphenyl)-1,3-thiazolidine (CAS 67086-82-2)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
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 13829788188 / jacky.chen@cato-chem.com