Alprazolam EP Impurity J CAS CATO-C4X-146018
| CAS No. | CATO-C4X-146018 |
| Molecular Formula | C34H25Cl2N7O |
| Molecular Weight | 618.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Alprazolam EP Impurity J (CAS CATO-C4X-146018) is a certified pharmaceutical impurity reference standard with the molecular formula C34H25Cl2N7O and a molecular weight of 618.51 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Alprazolam EP Impurity J is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 618.51 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C34H25Cl2N7O |
| Molecular Weight | 618.51 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 25.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 7 |
Related Alprazolam Standards
- Alprazolam impurity 23 (CAS CATO-C4X-146023)
- Alprazolam EP Impurity H (CAS 2203515-05-1)
- Alprazolam Impurity 22 (CAS CATO-C4X-146022)
- Alprazolam Impurity 3 (CAS 49691-65-8)
- Alprazolam Impurity 20 (CAS 26381-66-8)
- Alprazolam EP Impurity F (CAS 37945-07-6)
- Alprazolam Impurity 9 (CAS 17387-32-5)
- Alprazolam 5,6-Epoxide (CAS 36916-14-0)
Recommended Standards
- Methyl 3,5-bis({1-[4-(trifluoromethyl)phenyl]-1H-1,2,3-triazol-4-yl}methoxy)benzoate (CAS 866039-44-3)
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- 2,3,7,8,12,13,17,18-octaethyl-21<I>H</I>,23<I>H</I>-copper(II) porphine (CAS 14409-63-3)
- Ofloxacin Impurity 14 (CAS CATO-C4X-171714)
- Landiolol Impurity 42 (CAS CATO-C4X-262142)
- Topiroxostat Impurity 7 (CAS 2044704-74-5)
- Phenylephrine Impurity 95 (CAS CATO-C4X-146795)
- 2-Cyclopropyl-n'-hydroxyethanimidamide (CAS 152821-00-6)
- (4'-Fluorobiphenyl-3-yl)(methyl)sulfane (CAS 748817-99-4)
- N-(2-Hydroxyethyl)propionamide (CAS 18266-55-2)
- ethyl 2-[3-(tert-butoxycarbonylamino)azetidin-3-yl]-2,2-difluoro-acetate (CAS 2306268-63-1)
- 6-Amino-9-((2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purine-2-carbonitrile (CAS 122970-25-6)
- Methyl 2-amino-2-(3,5-dimethylphenyl)acetate (CAS 1250342-14-3)
- Insulin Degludec Impurity 18 (CAS CATO-C4X-215718)
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