(S)-Cetirizine Hydrochloride CAS 130018-89-2
| CAS No. | 130018-89-2 |
| Molecular Formula | C21H25ClN2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (S)-Cetirizine Hydrochloride is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(S)-Cetirizine Hydrochloride (CAS 130018-89-2) is a high-purity analytical reference standard with the molecular formula C21H25ClN2O3HCl and a molecular weight of 425.35 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, (S)-Cetirizine Hydrochloride is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 425.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures (S)-Cetirizine Hydrochloride 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 | C21H25ClN2O3 2*HCl |
| Molecular Weight | 425.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related S 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 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)
Recommended Standards
- 1-(Azetidin-1-yl)-2-(butyl(2-hydroxyethyl)amino)ethan-1-one (CAS 1250121-68-6)
- Tert-butyl ((4-(4-chlorobenzyl)piperidin-4-yl)methyl)carbamate (CAS 1823549-04-7)
- 5-fluorofuran-2-carbaldehyde (CAS 50899-04-2)
- H-DL-Met-OMe · HCl (CAS 16118-36-8)
- 4-chlorobutan-2-amine hydrochloride (CAS 2044872-44-6)
- 4-(1,3-Dioxaindan-5-yl)-2-methyl-5-(thiophen-3-yl)-2,3-dihydro-1h-pyrazol-3-imine (CAS 1354958-60-3)
- 1,2,4-Oxadiazole (CAS 288-90-4)
- [Tyr2 (3-OH)] - Desmopressin (CAS CATO-C4X-221522)
- Umeclidinium Impurity 5 (CAS CATO-C4X-13395)
- Angiotensin III Antipeptide (CAS 133605-55-7)
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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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com