Bilastine impurity 91 CAS 2245209-60-1
| CAS No. | 2245209-60-1 |
| Molecular Formula | C13H17ClO2 |
| Molecular Weight | 240.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Bilastine impurity 91 (CAS 2245209-60-1) is a certified pharmaceutical impurity reference standard with the molecular formula C13H17ClO2 and a molecular weight of 240.73 g/mol.
Structurally, Bilastine impurity 91 (C13H17ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 240.73 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C13H17ClO2 |
| Molecular Weight | 240.73 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl-containing |
Related Bilastine Standards
- Bilastine Impurity 11 (CAS 1181267-33-3)
- Bilastine impurity 93 (CAS CATO-C4X-225393)
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Recommended Standards
- Dyclonine Impurity 23 (CAS CATO-C4X-188123)
- 2-Chloro-4-((3-(methylthio)propyl)amino)benzonitrile (CAS 1097815-86-5)
- Dyclonine Impurity 22 (CAS CATO-C4X-188122)
- 1-((Chloromethyl)sulfonyl)-4-propylpiperazine (CAS 110417-46-4)
- Vitamin K2 Impurity 13 (CAS 587888-42-4)
- Perindopril Impurity 91 (CAS CATO-C4X-125291)
- Vilanterol Impurity 24 Formate (CAS CATO-C4X-193524)
- N-(Benzo[d]isoxazol-3-yl)-4-methylbenzamide (CAS 891025-25-5)
- 2-Bromo-L-phenylalanine (CAS 42538-40-9)
- 2-(2-Fluorophenyl)cyclobutan-1-ol (CAS 1823901-87-6)
- 2-(3-(Hydroxymethyl)pyrrolidin-1-yl)acetonitrile (CAS 17604-26-1)
- 3,6-Diazabicyclo[3.1.1]heptane (CAS 421554-68-9)
- 3-amino-4-chloro-5-nitrobenzonitrile (CAS 218961-90-1)
- Liraglutide (13-21) TFA Salt (CAS CATO-C4X-19928)
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