Ulipristal Impurity 16 CAS 159811-51-5
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 159811-51-5 |
| Molecular Formula | C28H35NO3 |
| Molecular Weight | 433.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Ulipristal Impurity 16 (CAS 159811-51-5) pharmacopoeial impurity standards reference standard. Molecular formula: C28H35NO3. Molecular weight: 433.58 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C28H35NO3 |
| Molecular Weight | 433.58 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 1 |
Related Ulipristal Standards
- Ulipristal D3 (CAS CATO-C4X-191535)
- Ulipristal Impurity 19 (CAS CATO-C4X-191519)
- Ulipristal Impurity 25 (CAS CATO-C4X-191525)
- Ulipristal Impurity 1 (CAS 159681-67-1)
- Ulipristal Impurity 13 (CAS CATO-C4X-191513)
- Ulipristal Impurity 3 (CAS 159681-66-0)
- Ulipristal Impurity 4 (CAS 244206-52-8)
- Ulipristal Impurity 27 (CAS 1655514-79-6)
Recommended Standards
- Fingolimod Impurity 13 (CAS 162358-08-9)
- Ebastine Impurity 14 (CAS CATO-C4X-202914)
- Fingolimod EP Impurity H (CAS 162358-09-0)
- Regadenoson Impurity 54 (CAS CATO-C4X-198554)
- Roxatidine impurity 69 (CAS 30450-85-2)
- 4-n-Butyl-1,2-phenylenediamine, 97% (CAS 3663-23-8)
- 2-Bromo-3-(bromomethyl)-6-(difluoromethyl)-4-methylpyridine (CAS 1804459-53-7)
- tert-Butyl 2-(4-bromophenyl)-3-thioxo-1,4,8-triazaspiro[4.5]dec-1-ene-8-carboxylate (CAS 1325306-86-2)
- 5-(tert-Butyl)-2-nitroaniline (CAS 142564-53-2)
- Des-Gly29,30-Tirzepatide (CAS CATO-CPTD788944)
Why CATO?
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