Olopatadine Impurity 32 CAS CATO-C4X-171832
| CAS No. | CATO-C4X-171832 |
| Molecular Formula | C17H22NOP |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Olopatadine Impurity 32 (CAS CATO-C4X-171832), a pharmacopoeial impurity reference standard (molecular formula C17H22NOPHCl, MW 323.80 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, organophosphorus functionality, a hydroxyl group, an ether linkage, chlorine substitution, Olopatadine Impurity 32 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 323.80 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO manufactures Olopatadine Impurity 32 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 | C17H22NOP HCl |
| Molecular Weight | 323.80 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Olopatadine Standards
- Olopatadine Impurity 44 (CAS 111088-69-8)
- Olopatadine Impurity 43 (CAS 1127893-02-0)
- Olopatadine Methyl Ester HCl (CAS 113805-71-3（free base）)
- Olopatadine Impurity 51 (CAS 113806-01-2)
- Olopatadine Ethyl Ester (HCl) (CAS 113806-03-4)
- Olopatadine (CAS 113806-05-6)
- (E)-Olopatadine (CAS 113806-06-7)
- Olopatadine Impurity N3 (CAS 113835-76-0)
Recommended Standards
- Procaterol Impurity 56 (CAS CATO-C4X-181056)
- Ketorolac Impurity 24 (CAS 141054-41-3)
- Bexarotene Impurity 3 (CAS 2825537-35-5)
- 1-(2-(3-Chloropyrazin-2-yl)pyrrolidin-1-yl)ethan-1-one (CAS 1316219-95-0)
- 2-Chloro-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine hydrochloride (CAS 1432795-17-9)
- 4-(1H-pyrazol-5-ylmethyl)piperidine (CAS 1936719-82-2)
- 3',4'-Dihydro-1'h-spiro[azetidine-2,2'-naphthalene] (CAS 1483318-68-8)
- Bromotrichloromethane (CAS 75-62-7)
- 4-Chloro-6-(4-fluorophenyl)pyrimidin-2-amine (CAS 423183-88-4)
- CBP501 Affinity Peptide trifluoroacetate salt (CAS 1351804-17-5)
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