4-(3-(3,4-Dimethylphenyl)-3-oxopropyl)-1,2-diphenylpyrazolidine-3,5-dione CAS 5539-99-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 5539-99-1 |
| Molecular Formula | C26H24N2O3 |
| Molecular Weight | 412.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(3-(3,4-Dimethylphenyl)-3-oxopropyl)-1,2-diphenylpyrazolidine-3,5-dione (CAS 5539-99-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C26H24N2O3. Molecular weight: 412.48 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C26H24N2O3 |
| Molecular Weight | 412.48 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 3,9-Di-tert-butyl 6-ethyl 7-oxo-3,9-diazabicyclo[3.3.1]nonane-3,6,9-tricarboxylate (CAS 2089463-50-1)
- 4-(Bis(2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-en-1-yl)methyl)benzoic acid (CAS 905776-24-1)
- 2-Phenethylquinazolin-4(3H)-one (CAS 4765-57-5)
- 4-Bromo-3-methyl-5-nitrobenzoic acid (CAS 408533-82-4)
- 3-Amino-1H-pyrrolo[2,3-c]pyridine-4-carbonitrile (CAS 1190322-35-0)
- Telmisartan Impurity 52 (CAS 7356-11-8)
- 2-Bromo-5-chlorobenzenethiol (CAS 54404-02-3)
- 3-Bromo-4-hydroxy-2-(trifluoromethyl)pyridine (CAS 1227593-40-9)
- Boc-Lys(Ac)-AMC (CAS 233691-67-3)
- Peptide 437 (CAS CATO-CPTD788437)
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