Cetirizine EP Impurity B CAS 1000690-91-4
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1000690-91-4 |
| Molecular Formula | C19H21ClN2O2 2*HCl |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Cetirizine EP Impurity B (CAS 1000690-91-4) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C19H21ClN2O2 2*HCl. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C19H21ClN2O2 2*HCl |
| Molecular Weight | 381.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Cetirizine Standards
- Cetirizine Impurity 10 (CAS 1016-78-0)
- rac Cetirizine N-Oxide (Mixture of Diastereomers) (CAS 1076199-80-8)
- Cetirizine USP Related Compound B (CAS 108983-83-1)
- Cetirizine EP Impurity G (CAS 109806-71-5)
- (R)-Cetirizine-d4 Dihydrochloride (CAS 1133210-23-7)
- Cetirizine Impurity N19 (CAS 113740-61-7)
- rac Cetirizine-d8 N-Oxide (CAS 1216444-13-1)
- (±)-Cetirizine-d4 (ethoxy-d4) (CAS 1219803-84-5)
Recommended Standards
- Eltrombopag Impurity 112 (CAS CATO-C4X-1198112)
- Cloperastine Impurity 4 HCl (CAS CATO-C4X-15954)
- 1H-Indene-1,2,3-trione (CAS 938-24-9)
- 2-(tert-Butoxy)-5-cyclopropoxypyridine-4-sulfonamide (CAS 1243394-78-6)
- Tetracycline Impurity 9 (CAS CATO-C4X-23319)
- (Prop-2-en-1-yl)[(2,3,4-trimethoxyphenyl)methyl]amine hydrochloride (CAS 1158320-84-3)
- GnRH Associated Peptide (GAP) (1-13), human (CAS 100111-07-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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