Fluralaner Impurity 51 CAS 1215216-63-9
| CAS No. | 1215216-63-9 |
| Molecular Formula | C23H17ClF9N3O3 |
| Molecular Weight | 589.84 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Fluralaner Impurity 51 (CAS 1215216-63-9) is a certified pharmaceutical impurity reference standard with the molecular formula C23H17ClF9N3O3 and a molecular weight of 589.84 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Fluralaner Impurity 51 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 589.84 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C23H17ClF9N3O3 |
| Molecular Weight | 589.84 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Fluralaner Standards
- Fluralaner Impurity 27 (CAS CATO-C4X-218027)
- Fluralaner Impurity 57 (CAS 1122021-93-5)
- Fluralaner impurity 34 (CAS CATO-C4X-218034)
- Fluralaner-d5-15N (CAS CATO-C4X-21802)
- Fluralaner-d5 (CAS CATO-C4X-21803)
- Fluralaner-13C2-d2-15N (CAS CATO-C4X-21801)
- Fluralaner Impurity 64 (CAS 2556570-87-5)
- Fluralaner-D4 (CAS CATO-CCAD304136)
Recommended Standards
- VH032-thiol-C6-NH2 (CAS 2098836-63-4)
- 2-{N-[5-(benzyloxy)-2,4-dichlorophenyl]4-methylbenzenesulfonamido}-N-(4-chlorophenyl)acetamide (CAS 338961-82-3)
- [S(R)]-N-[(S)-[(3-(Benzyloxy)-2-(dicyclohexylphosphino)phenyl)phenylmethyl]-2-methyl-2-propanesulfinamide (CAS 2565792-64-3)
- Regorafenib Impurity 57 (CAS CATO-C4X-104757)
- Valnemulin EP Impurity C (CAS CATO-C4X-19993)
- Baclofen Impurity 57 (CAS CATO-C4X-101257)
- Suzetrigine Impurity 5 (CAS CATO-C4X-33696)
- 38765-82-1 Pentanoic acid-1-13C Valeric acid-1-13C (CAS 38765-82-1)
- 2-Amino-3-chloro-5-methylbenzoic acid (CAS 66490-53-7)
- 1,2,3,4,8,9-Hexachlorodibenzofuran (CAS 92341-07-6)
- 1-((3,5-Difluorobenzyl)amino)-3-phenoxypropan-2-ol (CAS 866135-68-4)
- (3R)-1-Ethoxy-3-vinyl-1,3-dihydroisobenzofuran (CAS 915725-77-8)
- Ranitidine EP Impurity J (CAS 1331637-48-9)
- Semaglutide Impurity 146 (CAS 2645421-68-5)
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