Crisaborole impurity 131 CAS 2250222-38-7
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2250222-38-7 |
| Molecular Formula | C20H22BNO4 |
| Molecular Weight | 351.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Crisaborole impurity 131 (CAS 2250222-38-7) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C20H22BNO4. Molecular weight: 351.20 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C20H22BNO4 |
| Molecular Weight | 351.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 1 |
Related Crisaborole Standards
- Crisaborole Impurity 61 (CAS CATO-C4X-202161)
- Crisaborole Impurity 37 (CAS CATO-C4X-202137)
- Crisaborole Impurity 26 (CAS CATO-C4X-202126)
- Crisaborole Impurity 27 (CAS 2141947-89-7)
- Crisaborole impurity 129 (CAS CATO-C4X-2021129)
- Crisaborole lmpurity 100 (CAS CATO-C4X-2021100)
- Crisaborole lmpurity 101 (CAS CATO-C4X-2021101)
- Crisaborole impurity 105 (CAS CATO-C4X-2021105)
Recommended Standards
- Methyl 4-(((4-bromo-5-(dimethylamino)furan-2-yl)methylene)amino)benzoate (CAS 469895-89-4)
- 1-(3-Bromo-4-(trifluoromethyl)phenyl)-N,N-dimethylpiperidin-4-amine (CAS 1707605-13-7)
- Methyl 2-(3-(4-bromophenyl)-6-oxopyridazin-1(6H)-yl)butanoate (CAS 853333-96-7)
- Clevidipine butyrate Impurity 25 (CAS 43107-08-0)
- Opicapone impurity 26 (CAS CATO-C4X-240426)
- {imidazo[1,2-a]pyridin-2-ylmethyl}(methyl)amine (CAS 193534-56-4)
- 3-(2-((tert-Butoxycarbonyl)amino)-2-iminoethyl)benzoic acid (CAS 891782-64-2)
- 1-(3-(P-tolyl)benzo[c]isoxazol-5-yl)ethan-1-one (CAS 439094-63-0)
- 2,6-Dichloro-3-hydroxybenzonitrile (CAS 3336-34-3)
- (Des-His1,Glu?)-Glucagon (1-29) amide (human, rat, porcine) (CAS 110084-95-2)
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