Dapoxetine Impurity 21 CAS 2941-20-0
| CAS No. | 2941-20-0 |
| Molecular Formula | C9H13N |
| Molecular Weight | 135.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Dapoxetine Impurity 21 (C9H13N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies Dapoxetine Impurity 21 (CAS 2941-20-0), a pharmacopoeial impurity reference standard (molecular formula C9H13N, MW 135.21 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Dapoxetine Impurity 21 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H13N |
| Molecular Weight | 135.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Dapoxetine Standards
- Dapoxetine Impurity N3 (CAS 4436-22-0)
- Dapoxetine Impurity 84 (CAS 4436-23-1)
- Dapoxetine Impurity 90 (CAS CATO-C4X-143990)
- Dapoxetine Impurity 44 (CAS 623-71-2)
- Dapoxetine Impurity 48 (Contains ~1% BHT as stabilizer) (CAS 768-03-6)
- Dapoxetine Impurity 43 (CAS 6001-87-2)
- Dapoxetine Impurity 23 (CAS 102-93-2)
- Dapoxetine Impurity 45 (CAS 691-93-0)
Recommended Standards
- Pioglitazone impurity 54 (CAS 54119-29-8)
- Indobufen Impurity 36 (CAS 2696-84-6)
- 4-Cyclopentylbut-2-Enenitrile (CAS 1269823-36-0)
- Ruxolitinib Impurity 122 (CAS CATO-C4X-2058122)
- Venlafaxine EP Impurity F HCl (CAS 93413-79-7)
- Avibactam Impurity 134 Oxalate (CAS 2733516-71-5(free base))
- Dabigatran Impurity 36 (CAS 265659-61-8)
- (3-Aminoazetidin-1-yl)(2,4-difluorophenyl)methanone (CAS 1342724-17-7)
- 5-(3'-Hydroxybenzyl)hydantoin (CAS 216956-20-6)
- 4-Bromo-2,5-dimethylthiophene-3-carbaldehyde (CAS 887575-78-2)
- 4-(2-Chloropyrido[3,2-d]pyrimidin-4-yl)thiomorpholine 1,1-dioxide (CAS 39551-64-9)
- Sunitinib Impurity 40 (CAS CATO-C4X-133340)
- (3-Chloro-5-fluorophenyl)(3-(thiomorpholinomethyl)phenyl)methanone (CAS 898763-58-1)
- D-Ser12-Semaglutide (CAS CATO-C4X-2226240)
Why CATO?
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com