Diprophylline EP Impurity C CAS 519-37-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 519-37-9 |
| Molecular Formula | C9H12N4O3 |
| Molecular Weight | 224.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Diprophylline EP Impurity C (CAS 519-37-9) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C9H12N4O3. Molecular weight: 224.22 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C9H12N4O3 |
| Molecular Weight | 224.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
Related Diprophylline Standards
- Diprophylline Impurity 4 (CAS CATO-C4X-24404)
- Diprophylline Impurity 1 (CAS CATO-C4X-26491)
- (R)-Diprophylline (CAS 72376-78-4)
- Diprophylline (CAS 479-18-5)
- Diprophylline Impurity 12 (CAS CATO-C4X-244012)
- Diprophylline Impurity 5 (CAS CATO-C4X-24405)
- Diprophylline Impurity 6 (CAS CATO-C4X-24406)
- Diprophylline Impurity 2 (CAS CATO-C4X-26492)
Recommended Standards
- Isoniazid Impurity 7 (CAS 15420-02-7)
- Tetramethyluric Acid (CAS 2309-49-1)
- N'-(3-(3,6-Dioxo-2,3-dihydropyridazin-1(6H)-yl)propylidene)acetohydrazide (CAS 474333-22-7)
- Glutathione EP Impurity D TFA Salt (CAS 283159-88-6)
- Phenylephrine Impurity 33 (CAS CATO-C4X-146733)
- Etoricoxib impurity 67 (CAS 859824-65-0)
- 3-Chloro-2-(tetrahydro-2H-pyran-2-ylmethoxy)-phenylamine 4028AF 946682-29-7 C12H16ClNO2 (CAS 946682-29-7)
- Cefditoren Impurity 60 (CAS CATO-C4X-135860)
- N-(3-chlorophenyl)-4-(2-chloropyridin-4-yl)pyrimidin-2-amine (CAS 164658-40-6)
- Semaglutide impurity 109 (CAS CATO-C4X-2226109)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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