Artemisinin Impurity 19 CAS CATO-C4X-201219
| CAS No. | CATO-C4X-201219 |
| Molecular Formula | C30H46O9 |
| Molecular Weight | 550.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Artemisinin Impurity 19 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Artemisinin Impurity 19 (CAS CATO-C4X-201219) is a certified pharmaceutical impurity reference standard with the molecular formula C30H46O9 and a molecular weight of 550.68 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, Artemisinin Impurity 19 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 550.68 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).
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.
As a certified reference material (CRM), Artemisinin Impurity 19 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 | C30H46O9 |
| Molecular Weight | 550.68 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at room temperature, 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 |
Related Artemisinin Standards
- Artemisinin Impurity 18 (CAS CATO-C4X-201218)
- Artemisinin Impurity 20 (CAS CATO-C4X-201220)
- Artemisinin Impurity 2 (CAS 1453465-55-8)
- Artemisinin Impurity 4 (CAS 181528-64-3)
- Artemisinin-d3 (CAS 176652-07-6)
- Artemisinin Impurity 11 (CAS 81496-81-3)
- 9-epi-Artemisinin (CAS 113472-97-2)
- Artemisinin (CAS 63968-64-9)
Recommended Standards
- ACOVENOSIDE A (CAS 663-95-6)
- (R)-(6,6'-Dimethoxy-[1,1'-biphenyl]-2,2'-diyl)bis(dicyclopentylphosphine) (CAS 150971-53-2)
- 1-Chloro-3-methylimidazo[1,5-a]pyrazine (CAS 56481-30-2)
- (1S)-(6,6'-Dimethoxy-[1,1'-biphenyl]-2,2'-diyl)bis(dicyclopentylphosphine) (CAS 150971-55-4)
- Levothyroxine Impurity 54 (CAS CATO-C4X-167854)
- Olodaterol Impurity 32 (CAS CATO-C4X-194332)
- Atomoxetine Impurity 32 (CAS CATO-C4X-155032)
- 1H,3H,4H-Pyrrolo[2,1-c][1,4]oxazine-8-carboxylic acid (CAS 1449136-89-3)
- (S)-3-Amino-1-hydroxyazepan-2-one (CAS 210547-94-7)
- Abrocitinib Impurity 39 (CAS CATO-C4X-288439)
- 5-(6-Methyl-4,5,6,7-tetrahydrobenzo[b]thiophen-3-yl)-4-propyl-4H-1,2,4-triazole-3-thiol (CAS 847503-23-5)
- {[(3-chloro-1-adamantyl)carbonyl]amino}acetic acid (CAS 750608-09-4)
- 5-Methyl-2-(4-nitrophenyl)imidazo[1,2-a]pyridine (CAS 254902-03-9)
- Semaglutide impurity 244(Fmoc-His(Fmoc)-Aib-OH) (CAS CATO-C4X-2226244)
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