Primaquine EP Impurity D CAS 83532-78-9
| CAS No. | 83532-78-9 |
| Molecular Formula | C23H23N3O3 |
| Molecular Weight | 389.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Primaquine EP Impurity D is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 389.45 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).
As a process- or degradation-related impurity, Primaquine EP Impurity D (CAS 83532-78-9, C23H23N3O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
CATO manufactures Primaquine EP Impurity D under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H23N3O3 |
| Molecular Weight | 389.45 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 3 |
Related Primaquine Standards
- Primaquine Impurity 1 (CAS 47136-26-5)
- Primaquine impurity 3 (CAS CATO-C4X-26353)
- Primaquine Impurity 3 (CAS 57695-07-5)
- Primaquine-d3 Diphosphate (CAS 1318852-20-8)
- Primaquine - API Standards (CAS 90-34-6)
- Primaquine Impurity 4 (CAS 2732404-25-8)
- Primaquine EP Impurity B (CAS 85-81-4)
- Primaquine EP Impurity C (CAS 90-52-8)
Recommended Standards
- Upadacitinib Impurity 95 (CAS CATO-C4X-240595)
- Anamorelin Impurity 12 (CAS CATO-C4X-285912)
- Upadacitinib Impurity 8 (CAS CATO-C4X-24058)
- Anamorelin Intermediate 3 (CAS 210481-85-9)
- Cefalotin Impurity 9 (CAS CATO-C4X-12849)
- Tivozanib Impurity 23 (CAS CATO-C4X-340023)
- Spermine Impurity 4 (CAS CATO-C4X-33934)
- 4-(Hydroxymethyl)dihydro-2H-pyran-3(4H)-one (CAS 121197-11-3)
- (4-Chlorophenyl)(4-(((2,4-dichlorophenyl)thio)methyl)-4-hydroxypiperidin-1-yl)methanone (CAS 866143-80-8)
- 1-(1-Benzylpiperidin-4-yl)-5-chloro-1H-benzo[d]imidazol-2(3H)-one (CAS 185058-65-5)
- N2,N7-Bis(4-chlorophenyl)-9H-fluorene-2,7-disulfonamide (CAS 303059-35-0)
- Cobicistat Impurity 4 (CAS 2230789-82-7)
- 2-[3-(4-methoxyphenyl)propanamido]benzoic acid (CAS 692281-53-1)
- Atrial Natriuretic Polypeptide (4-28), human (CAS 95896-08-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com