Olopatadine Impurity 44 CAS 111088-69-8
| CAS No. | 111088-69-8 |
| Molecular Formula | C22H24OP |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Olopatadine Impurity 44.
Olopatadine Impurity 44 (CAS 111088-69-8) is a certified pharmaceutical impurity reference standard with the molecular formula C22H24OPBr and a molecular weight of 415.31 g/mol.
Based on its molecular formula C22H24OPBr, Olopatadine Impurity 44 contains a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 415.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 manufactures Olopatadine Impurity 44 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 | C22H24OP Br |
| Molecular Weight | 415.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at room temperature, 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) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Br-containing |
Related Olopatadine Standards
- 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)
- Olopatadine Impurity 9 (CAS 113835-92-0)
Recommended Standards
- Azilsartan Impurity 135 (CAS 209551-67-7)
- Quifenadine Impurity 2 (CAS 57734-94-8)
- Nemonoxacin Impurity 3 (CAS 2770004-82-3)
- (2S,5S)-5-Hydroxypiperidine-2-carboxylic Acid (CAS 63088-78-8)
- 4-Cyclopropylphenol (CAS 10292-61-2)
- 2-(4-Phenyl-1H-imidazol-2-yl)benzoic acid (CAS 824395-45-1)
- 2-(1-(Oxazolo[4,5-b]pyridin-2-yl)piperidin-3-yl)acetic acid (CAS 1035840-21-1)
- Oxacyclononadecane-2,19-dione (CAS 1420877-76-4)
- ethyl 2-hydroxy-5-phenylpentanoate (CAS 214336-45-5)
- [3-31]-Semaglutide D (Sodium salt) (CAS CATO-C4X-2226119)
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