1-Butyl-3-(4-nitrophenyl)urea CAS 21260-50-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21260-50-4 |
| Molecular Formula | C11H15N3O3 |
| Molecular Weight | 237.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Butyl-3-(4-nitrophenyl)urea (CAS 21260-50-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C11H15N3O3. Molecular weight: 237.26 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C11H15N3O3 |
| Molecular Weight | 237.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |
Related Butyl Standards
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- (Z)-2-((4-nitrophenyl)imino)thiazolidin-4-one (CAS 66625-40-9)
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- N-(3-nitrophenyl)-2-thiocyanatoacetamide (CAS 331981-25-0)
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Recommended Standards
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- 1,1-Dimethyl-3-(2-(2-nitroethyl)phenyl)urea (CAS 339111-00-1)
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- 2-Chloro-6-(difluoromethyl)-3-iodo-5-nitropyridine (CAS 1805359-63-0)
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