Loxoprofen Impurity 55 CAS CATO-C4X-148855
| CAS No. | CATO-C4X-148855 |
| Molecular Formula | C35H44O6 |
| Molecular Weight | 560.72 g/mol |
| 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 Loxoprofen Impurity 55 (CAS CATO-C4X-148855), a pharmacopoeial impurity reference standard (molecular formula C35H44O6, MW 560.72 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Loxoprofen Impurity 55 (C35H44O6) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C35H44O6 |
| Molecular Weight | 560.72 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Loxoprofen Standards
- Loxoprofen Impurity 110 (CAS CATO-C4X-1488110)
- Loxoprofen impurity 126 (CAS CATO-C4X-1488126)
- Loxoprofen Impurity 46 (Mixture of Isomers) (CAS CATO-C4X-148846)
- Loxoprofen impurity 93 (CAS CATO-C4X-148893)
- Loxoprofen Impurity 47 (CAS CATO-C4X-148847)
- Loxoprofen impurity 101 (CAS CATO-C4X-1488101)
- Loxoprofen impurity 105 (CAS CATO-C4X-1488105)
- Loxoprofen impurity 106 (CAS CATO-C4X-1488106)
Recommended Standards
- Cucurbitacin Q1 (CAS 99530-82-2)
- Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 6'-(dipentylamino)-3'-methyl-2'-(phenylamino)- (CAS 129473-78-5)
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- 1-Amino-4-(mesitylamino)-2-(4-(2,4,4-trimethylpentan-2-yl)phenoxy)anthracene-9,10-dione (CAS 71701-33-2)
- Cefotiam Impurity 1 (CAS 775233-43-7)
- Carbazochrome Impurity 50 (CAS CATO-C4X-229150)
- Rasagiline impurity 62 (CAS CATO-C4X-191362)
- (4-Chlorophenyl)(5-(2-methoxyphenyl)-1H-1,2,4-triazol-3-yl)methanamine (CAS 1708275-13-1)
- 4-{[1,2,4]triazolo[4,3-a]quinoxalin-4-yl}morpholine (CAS 127710-42-3)
- 2-[Methyl(naphthalene-2-carbonyl)amino]acetic acid (CAS 133604-69-0)
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- Pantoprazole Impurity 48 (CAS CATO-C4X-139948)
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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