Urapidil Impurity 56 CAS CATO-C4X-192456
| CAS No. | CATO-C4X-192456 |
| Molecular Formula | C10H16ClN3O2 |
| Molecular Weight | 245.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Urapidil Impurity 56 (CAS CATO-C4X-192456), a pharmacopoeial impurity reference standard (molecular formula C10H16ClN3O2, MW 245.71 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Urapidil Impurity 56 (C10H16ClN3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 245.71 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C10H16ClN3O2 |
| Molecular Weight | 245.71 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Urapidil Standards
- Urapidil Impurity 29 (CAS 21103-25-3)
- Urapidil Impurity 88 (CAS 13379-99-2)
- Urapidil Impurity 90 (CAS CATO-C4X-192490)
- Urapidil Impurity (CAS 20529-23-1)
- Urapidil Impurity 111 (CAS CATO-C4X-1924111)
- Urapidil Impurity 93 (CAS 63987-50-8)
- Urapidil Impurity 3 (CAS 34654-81-4)
- Urapidil Impurity 48 (CAS CATO-C4X-192448)
Recommended Standards
- N-(4-chlorophenyl)-N'-methylisonicotinimidamide (CAS 338760-98-8)
- 1-[4-(3-Chloropropoxy)-3-methoxyphenyl]ethanone-d3 (CAS 1071167-68-4)
- 6-Chloro-N,N-bis(2-methoxyethyl)pyridazin-3-amine (CAS 83491-12-7)
- 2-((2-Chloro-6-fluorobenzyl)(isopropyl)amino)ethanol (CAS 1249759-77-0)
- Efinaconazole Impurity 33 (CAS CATO-C4X-124333)
- Lercanidipine Impurity 65 (CAS CATO-C4X-136465)
- Daptomycin Impurity 9 (CAS CATO-C4X-13789)
- 1-(2-(1h-1,2,4-Triazol-1-yl)ethyl)-1h-pyrazol-4-amine (CAS 1249119-34-3)
- 1-(2-Aminoethyl)-N,N-dimethyl-1H-pyrazole-4-sulfonamide (CAS 1485698-36-9)
- Benzyl N-[(3R,4R)-3-hydroxypiperidin-4-yl]carbamate (CAS 1638744-48-5)
- 2-[(5-Amino-1,3,4-thiadiazol-2-yl)thio]-N-(5-chloro-2-methylphenyl)acetamide (CAS 328281-60-3)
- Methyl (4-(fluorosulfonyl)phenyl)carbamate (CAS 315239-61-3)
- 1-{[(3-methyloxetan-3-yl)methyl]sulfanyl}ethan-1-one (CAS 1803588-59-1)
- Des-Ala35-Tirzepatide (CAS CATO-CPTD788939)
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