Paroxetine Impurity 81 CAS 2945089-65-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2945089-65-4 |
| Molecular Formula | C22H16F4N4O5 |
| Molecular Weight | 492.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Paroxetine Impurity 81 (CAS 2945089-65-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C22H16F4N4O5. Molecular weight: 492.38 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C22H16F4N4O5 |
| Molecular Weight | 492.38 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Paroxetine Standards
- Paroxetine Impurity 30 (CAS 253768-88-6)
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- Paroxetine Impurity 74 (CAS CATO-C4X-103574)
- Paroxetine HCl Anhydrous EP Impurity J (CAS CATO-C4X-103534)
- Paroxetine Impurity 47 (CAS 105813-40-9)
- Paroxetine Impurity 69 (CAS CATO-C4X-103569)
- Paroxetine Impurity 44 (CAS 317323-77-6)
- Paroxetine Impurity 61 (CAS CATO-C4X-103561)
Recommended Standards
- N-(2-((3-Bromophenyl)(hydroxy)methyl)-4,5-dimethoxyphenyl)-4-methylbenzenesulfonamide (CAS 340696-19-7)
- 5,5'-(Terephthaloylbis(azanediyl))diisophthalic acid (CAS 120360-52-3)
- Leritrelvir impurity 1 (CAS CATO-C4X-34741)
- Rupatadine Impurity 38 (CAS CATO-C4X-102738)
- Lansoprazole impurity 74 (CAS CATO-C4X-111374)
- (2`R,2S,cis)-Saxagliptin (CAS 1564265-93-5)
- Benzyl 2-chloro-2-[2-(2,6-dichlorophenyl)hydrazono]acetate (CAS 1000576-05-5)
- (4'-(Isopentyloxy)-[1,1'-biphenyl]-4-yl)boronic acid (CAS 1072951-81-5)
- 2,3,3-Trichloro-N-(2-chlorophenyl)prop-2-enamide (CAS 949-35-9)
- Peptide Impurity 04 (CAS 2913424-91-4)
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