Apomorphine Impurity 2 CAS CATO-C4X-21172
| CAS No. | CATO-C4X-21172 |
| Molecular Formula | C17H21NO4 |
| Molecular Weight | 303.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Apomorphine Impurity 2 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 303.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Apomorphine Impurity 2 (CAS CATO-C4X-21172, C17H21NO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 | C17H21NO4 |
| Molecular Weight | 303.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Apomorphine Standards
- Apomorphine impurity 3 (CAS CATO-C4X-21173)
- (S)-Apomorphine (CAS 39478-62-1)
- Apomorphine - API Standards (CAS 58-00-4)
- Apomorphine Impurity N1 (CAS 18605-40-8)
- (R)-Apomorphine-10-sulfate (CAS 1330267-27-0)
- (R)-Apomorphine-d3 Hydrochloride (CAS 1286600-66-5)
- (R)-Apomorphine-d5 Hydrochloride (CAS 1795787-10-8)
- (R)-Apomorphine-d4 Hydrochloride (CAS 76787-63-8)
Recommended Standards
- Fenoterol EP Impurity A(R,S-Isomer) (CAS 391234-97-2)
- Fenoterol (CAS 13392-18-2)
- Scopolamine Impurity 16(R-Isomer) (CAS 64069-63-2)
- Scopolamine (CAS 51-34-3)
- Bosutinib Impurity 33 (CAS 709-09-1)
- Iopamidol EP Impurity K (CAS 1788899-70-6)
- Baclofen impurity 17 (CAS 114703-75-2)
- UR-144 N-(4-hydroxypentyl) metabolite (CAS 1537889-04-5)
- 2,6-Dichloro-3-nitrobenzyl Bromide (CAS 83141-02-0)
- Boc-NH-PEG2-C2-NHS ester (CAS 2183440-73-3)
- 4-(6-Methylpyridin-3-yl)piperidin-4-ol (CAS 1228183-11-6)
- Sertraline RC 11 (CAS 1217630-23-3)
- Sodium 4-undecanoyl-1H-pyrrole-2-carboxylate (CAS 1007029-01-7)
- Neuropeptide S (human) (CAS 412938-67-1)
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