Bilastine Impurity 70 CAS CATO-C4X-225370
| CAS No. | CATO-C4X-225370 |
| Molecular Formula | C18H24N4O |
| Molecular Weight | 312.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Bilastine Impurity 70.
CATO supplies Bilastine Impurity 70 (CAS CATO-C4X-225370), a pharmacopoeial impurity reference standard (molecular formula C18H24N4O, MW 312.41 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Bilastine Impurity 70 (C18H24N4O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 312.41 g/mol, it falls into the moderately-high-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.
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.
Physical & Chemical Properties
| Molecular Formula | C18H24N4O |
| Molecular Weight | 312.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Bilastine Standards
- Bilastine impurity 132 (CAS 361382-25-4)
- Bilastine impurity 116 (CAS 93142-62-2)
- Bilastine Impurity 38 (CAS 883106-63-6)
- Bilastine Impurity 54 (CAS CATO-C4X-225354)
- Bilastine Impurity 42 (CAS 3112735-82-4)
- Bilastine impurity 137 (CAS CATO-C4X-2253137)
- Bilastine Impurity 21 (CAS 953071-73-3)
- Bilastine Impurity 15 (CAS 192775-97-6)
Recommended Standards
- (R)-Praziquantel (CAS 57452-98-9)
- Benzydamine Hydrochloride EP Impurity A (CAS 87453-76-7)
- Granisetron EP Impurity A (CAS 127472-42-8)
- Labetalol Impurity 32 (CAS 345933-79-1)
- Vonoprazan Impurity 116 (CAS CATO-C4X-1020116)
- Tolvaptan Impurity 127 (CAS CATO-C4X-1955127)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
- 5-Bromo-2-methylbenzonitrile (CAS 156001-51-3)
- 2-Bromo-4-chloro-5-(chloromethyl)-3-(difluoromethyl)pyridine (CAS 1805385-44-7)
- 7-(Difluoromethyl)-5-methyl-4h,5h,6h,7h-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 725699-03-6)
- 3-Acetoxy-1-acetylazetidine (CAS 143329-27-5)
- Warfarin Impurity 17 (CAS CATO-C4X-142917)
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