Milrinone Impurity 31 CAS CATO-C4X-109131
| CAS No. | CATO-C4X-109131 |
| Molecular Formula | C22H26N2O4 |
| Molecular Weight | 382.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Milrinone Impurity 31 (CAS CATO-C4X-109131) is a certified pharmaceutical impurity reference standard with the molecular formula C22H26N2O4 and a molecular weight of 382.45 g/mol.
Milrinone Impurity 31 (C22H26N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C22H26N2O4 |
| Molecular Weight | 382.45 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Milrinone Standards
- Milrinone Impurity 28 (CAS CATO-C4X-109128)
- Milrinone Impurity 15 (CAS CATO-C4X-109115)
- Milrinone Impurity 16 (CAS 2244529-59-5)
- Milrinone Impurity 9 (CAS 80442-07-5)
- Milrinone Impurity 30 (CAS CATO-C4X-109130)
- Milrinone impurity 38 (CAS CATO-C4X-109138)
- Milrinone Impurity 17 (CAS CATO-C4X-109117)
- Milrinone Impurity 26 (CAS CATO-C4X-109126)
Recommended Standards
- Monascorubrin (CAS 13283-90-4)
- Budesonide Impurity 57 (CAS CATO-C4X-138957)
- Prednisone Impurity N56 (CAS 103466-44-0)
- Camptothecin impurity 19 (CAS CATO-C4X-157119)
- Indapamide Impurity 11 (CAS 1856658-28-0)
- Sildenafil Impurity 98 (CAS CATO-C4X-112898)
- Nemonoxacin Impurity 6 (CAS 2770004-79-8)
- 2-Methyl-5-((octyloxy)methyl)quinolin-8-ol (CAS 141704-26-9)
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- 2-(4-Formyl-1H-pyrazol-1-yl)acetonitrile (CAS 1824101-63-4)
- 5-Methyl-3-(naphthalen-2-yl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 1326814-23-6)
- (S)-1-(3-bromo-5-methylphenyl)-2,2,2-trifluoroethan-1-amine (CAS 1269780-77-9)
- (E)-4-(((4-chloro-6-methylpyrimidin-2-yl)imino)methyl)-5-hydroxy-1,6-dihydro-[1,1'-biphenyl]-3(2H)-one (CAS 946387-26-4)
- D-Ala35-Tirzepatide (CAS CATO-CPTD788904)
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