Cetirizine USP Related Compound B CAS 108983-83-1
| CAS No. | 108983-83-1 |
| Molecular Formula | C19H24N2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Cetirizine USP Related Compound B (CAS 108983-83-1), molecular formula C19H24N2OHCl and molecular weight 332.87 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H24N2OHCl, Cetirizine USP Related Compound B contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 332.87 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Cetirizine USP Related Compound B under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H24N2O 2*HCl |
| Molecular Weight | 332.87 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| 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 EP Impurity B (CAS 1000690-91-4)
- Cetirizine Impurity 10 (CAS 1016-78-0)
- rac Cetirizine N-Oxide (Mixture of Diastereomers) (CAS 1076199-80-8)
- 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
- 2-Methyl-N-(3-methylpentan-2-yl)cyclohexan-1-amine (CAS 1218464-27-7)
- 1-[3-(Trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazine (CAS 338748-56-4)
- N-{3-cyano-4H,5H,6H-cyclopenta[b]thiophen-2-yl}-2-{[3-cyano-6-(3,4-dimethoxyphenyl)-4-(trifluoromethyl)pyridin-2-yl]sulfanyl}acetamide (CAS 625369-48-4)
- 7-Bromo-2,3-dichloropyrido[3,4-b]pyrazine (CAS 1558735-50-4)
- 6-Chloro-2-(cyclohexylamino)quinazolin-4(3H)-one (CAS 305833-88-9)
- N-(ε-N-Benzyloxycarbonylamino)caproyl)-β-D-galactopyranosylamine (contains approx 35% Ethanol) (CAS 38822-58-1)
- N-(2-aminoethyl)-2-fluorobenzamide hydrochloride (CAS 152535-13-2)
- (Cyclopropylmethyl)(prop-2-yn-1-yl)amine hydrochloride (CAS 1423031-80-4)
- n1,n1-Dimethyl-n3-((5-methylfuran-2-yl)methyl)propane-1,3-diamine (CAS 626216-66-8)
- Tirzepatide (CAS 2023788-19-2)
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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