Cetirizine Polyethylene Glycol (PEG) Ester CAS 1509941-93-8
| CAS No. | 1509941-93-8 |
| Molecular Formula | C21H25ClN2O3 [C2H4O] n |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Cetirizine Polyethylene Glycol (PEG) Ester (CAS 1509941-93-8), molecular formula C21H25ClN2O3 [C2H4O] n and molecular weight 432.94 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H25ClN2O3 [C2H4O] n, Cetirizine Polyethylene Glycol (PEG) Ester contains a flavonoid 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 432.94 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 Cetirizine Polyethylene Glycol (PEG) Ester 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 [C2H4O] n |
| Molecular Weight | 432.94 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| 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 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
- 1,3,3-Trimethyl-2-((1E,3E)-5-((E)-1,3,3-trimethylindolin-2-ylidene)penta-1,3-dien-1-yl)-3H-indol-1-ium perchlorate 81666-87-7 (CAS 81666-87-7)
- Butyl 6,8-difluoro-4-(piperazin-1-yl)quinoline-2-carboxylate (CAS 1951444-46-4)
- 6-(Methoxymethyl)-2-pyridinemethanamine (CAS 863548-33-8)
- tert-Butyl benzyl(4-hydroxybutyl)carbamate (CAS 117654-86-1)
- Tert-butyl 2-(1-(cyclobutylimino)-2-phenylethyl)hydrazine-1-carboxylate (CAS 1053657-71-8)
- 4-(Aminomethyl)-3-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-sulfonyl chloride (CAS 1361703-48-1)
- 6-Ethyl-5-methyl-2-((pyridin-3-ylmethyl)thio)nicotinonitrile (CAS 370869-77-5)
- Ethyl 2-oxo-2-(piperidin-1-yl)acetate (CAS 53074-96-7)
- 2-(2-(tert-Butylthio)pyridin-3-yl)pyrrolidine-1-carbaldehyde (CAS 1352533-46-0)
- Dendroaspis Natriuretic Peptide (CAS 255721-52-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com