Isotretinoin EP Impurity G (5,6-Epoxy-13-cis Retinoic Acid) (and enantiomer) CAS 81444-57-7
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 81444-57-7 |
| Molecular Formula | C20H28O3 |
| Molecular Weight | 316.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Isotretinoin EP Impurity G (5,6-Epoxy-13-cis Retinoic Acid) (and enantiomer) (CAS 81444-57-7) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C20H28O3. Molecular weight: 316.43 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C20H28O3 |
| Molecular Weight | 316.43 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Related Isotretinoin Standards
- Isotretinoin EP Impurity I (CAS 75281-25-3)
- Isotretinoin EP Impurity H (CAS 71748-58-8)
- Isotretinoin-d5 (CAS CATO-C4X-196936)
- Isotretinoin EP Impurity F (CAS 68070-35-9)
- Isotretinoin EP Impurity D (CAS 5300-03-8)
- Isotretinoin (CAS 4759-48-2)
- Isotretinoin Impurity 11 (CAS 14398-42-6)
- Isotretinoin Glucuronide (CAS 78147-42-9)
Recommended Standards
- 4-Hydroxy-all-trans-Retinoic Acid (CAS 66592-72-1)
- Lovastatin Impurity 39 (CAS CATO-C4X-168439)
- 5,8-Epoxy-13-cis Retinoic Acid (Mixture of Diastereomers) (CAS 112018-12-9)
- Phenylephrine Impurity 37 (CAS 70935-14-7)
- Tenofovir disoproxil Impurity 137 (CAS CATO-C4X-1076137)
- 1-(Propylsulfonyl)-1H-benzo[d]imidazol-2-amine (CAS 1355179-58-6)
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- N-[(1E)-(Dimethylamino)methylidene]-3-phenyl-6-(trifluoromethyl)thieno[3,2-b]pyridine-2-carboxamide (CAS 478260-64-9)
- Cu (CAS 7440-50-8)
- Angiotensin III Antipeptide (CAS 133605-55-7)
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 13829788188 / jacky.chen@cato-chem.com