Crisaborole Impurity 38 CAS 2254541-79-0
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 2254541-79-0 |
| Molecular Formula | C28H20N2O4 |
| Molecular Weight | 448.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Crisaborole Impurity 38 (CAS 2254541-79-0) pharmacopoeial impurity standards reference standard. Molecular formula: C28H20N2O4. Molecular weight: 448.47 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C28H20N2O4 |
| Molecular Weight | 448.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 2 |
Related Crisaborole Standards
- Crisaborole impurity 116 (CAS CATO-C4X-2021116)
- Crisaborole lmpurity 98 (CAS CATO-C4X-202198)
- Crisaborole lmpurity 81 (CAS CATO-C4X-202181)
- Crisaborole impurity 126 (CAS CATO-C4X-2021126)
- Crisaborole Impurity 50 (CAS CATO-C4X-202150)
- Crisaborole impurity 123 (CAS CATO-C4X-2021123)
- Crisaborole Impurity 146 (CAS CATO-C4X-2021146)
- Crisaborole lmpurity 79 (CAS CATO-C4X-202179)
Recommended Standards
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- Hydrochlorothiazide Impurity 38 (CAS CATO-C4X-117738)
- N-methyl-2-(2,3,4-trimethoxyphenyl)ethan-1-amine (CAS 32042-11-8)
- (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-isopropylphenyl)acetic acid (CAS 1260618-80-1)
- Ethyl 2-(5-chloro-3-methyl-1H-indol-2-yl)acetate (CAS 1169441-61-5)
- Methyl 3-((trifluoromethyl)thio)benzoate (CAS 88489-59-2)
- Hepcidin/LEAP-1 (Human); Liver-Expressed Antimicrobial Peptide (CAS 342790-21-0)
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