Doxycycline EP Impurity E CAS 79-57-2
Purity >85%In StockPharmacopoeial Impurity Standards
| CAS No. | 79-57-2 |
| Molecular Formula | C22H24N2O9 |
| Molecular Weight | 460.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Doxycycline EP Impurity E (CAS 79-57-2) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C22H24N2O9. Molecular weight: 460.43 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C22H24N2O9 |
| Molecular Weight | 460.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >85% |
| Storage | Store in a cool place (≤25°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Doxycycline Standards
- Doxycycline Impurity 26 (CAS CATO-C4X-193126)
- Doxycycline Impurity 19 (CAS CATO-C4X-193119)
- Doxycycline Impurity 25 (CAS CATO-C4X-193125)
- Doxycycline-13CD3 (CAS 1902958-13-7)
- Doxycycline-13C-d3 (CAS CATO-C4X-193111)
- Doxycycline-d3 (CAS 2747918-45-0)
- Doxycycline-d3 (CAS CATO-C4X-193110)
- Doxycycline EP Impurity A (CAS 3219-99-6)
Recommended Standards
- Sodium Cromoglicate Impurity 14 (CAS CATO-C4X-201114)
- Gemcitabine Impurity 35 (CAS CATO-C4X-137235)
- Sodium Cromoglicate Impurity 19 (CAS CATO-C4X-201119)
- Mosapride Impurity 47 (CAS CATO-C4X-104447)
- Benzydamine Hydrochloride EP Impurity A (CAS 87453-76-7)
- (1-(Tert-butoxycarbonyl)-1,2,5,6-tetrahydropyridin-3-yl)trifluoroborate (CAS 2416056-25-0)
- [6-(2,4-Dimethoxyphenyl)-2-pyridyl]methanol (CAS 887981-31-9)
- Methyl 4-{[2-(4-chlorobenzamido)-4-(trifluoromethyl)phenyl]amino}butanoate (CAS 339101-69-8)
- 2-(Phenylsulfonyl)-1,2,3,4-tetrahydroisoquinoline-7-carboxylic acid (CAS 1956369-45-1)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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