Regadenoson Impurity N2 CAS 79999-39-6
| CAS No. | 79999-39-6 |
| Molecular Formula | C16H18ClN5O7 |
| Molecular Weight | 427.80 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Regadenoson Impurity N2.
Regadenoson Impurity N2 (CAS 79999-39-6) is a certified pharmaceutical impurity reference standard with the molecular formula C16H18ClN5O7 and a molecular weight of 427.80 g/mol.
Regadenoson Impurity N2 (C16H18ClN5O7) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C16H18ClN5O7 |
| Molecular Weight | 427.80 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Regadenoson Standards
- Regadenoson Impurity N1 (CAS 16321-99-6)
- Regadenoson Impurity 16 (CAS CATO-C4X-198516)
- Regadenoson Impurity 56 (CAS CATO-C4X-198556)
- Regadenoson Impurity 59 (CAS CATO-C4X-198559)
- Regadenoson Impurity 31 (CAS CATO-C4X-198531)
- Regadenoson Impurity 57 (CAS 52921-40-1)
- Regadenoson Impurity 6 (CAS 313348-16-2)
- Regadenoson Impurity 20 (CAS 313348-33-3)
Recommended Standards
- 4-Chloro-2-{[(2,6-dichlorophenyl)methyl]sulfanyl}-6-[(phenylsulfanyl)methyl]pyrimidine (CAS 860609-64-9)
- 4-{[(4-chlorophenyl)sulfanyl]methyl}-6-[(2,6-dichlorophenyl)sulfanyl]-2-methylpyrimidine (CAS 339278-81-8)
- 1,2-Dibromo-4-(1,2-dibromoethyl)cyclohexane (CAS 3322-93-8)
- 4-{[(4-chlorophenyl)sulfanyl]methyl}-6-[(2,4-dichlorophenyl)sulfanyl]-2-methylpyrimidine (CAS 339278-79-4)
- Empagliflozin Impurity 307 (CAS CATO-C4X-1065307)
- Mexiletine Impurity 12 (CAS CATO-C4X-192912)
- Tofacitinib Impurity 1 (CAS 1092578-46-5)
- Dilithium tetrabromonickelate(II) solution,0.5M in THF (CAS 13826-95-4)
- Tert-butyl (S)-(4-oxocyclopent-2-en-1-yl)carbamate (CAS 657397-04-1)
- (3-(4-Bromophenyl)propoxy)(tert-butyl)dimethylsilane (CAS 153993-80-7)
- 4-(p-Tolyl)piperidine hydrochloride (CAS 67765-24-6)
- 3-methoxy-8-azabicyclo[3.2.1]octane (CAS 209733-22-2)
- (S)-3-Hydroxy-5-oxotetrahydrofuran-3-carboxylic acid (CAS 131001-79-1)
- Allo-D-Ile27-Tirzepatide (CAS CATO-CPTD788961)
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