Pranoprofen Impurity 67 CAS CATO-C4X-181167
| CAS No. | CATO-C4X-181167 |
| Molecular Formula | C14H10ClNO2 |
| Molecular Weight | 259.69 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.
Pranoprofen Impurity 67 (CAS CATO-C4X-181167) is a certified pharmaceutical impurity reference standard with the molecular formula C14H10ClNO2 and a molecular weight of 259.69 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Pranoprofen Impurity 67 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 259.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Pranoprofen Impurity 67 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H10ClNO2 |
| Molecular Weight | 259.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Pranoprofen Standards
- Pranoprofen Impurity 44 (CAS CATO-C4X-181144)
- Pranoprofen (CAS 52549-17-4)
- Pranoprofen Impurity 34 (CAS 2688845-71-6)
- Pranoprofen Impurity 55 (CAS 56708-14-6)
- Pranoprofen Impurity 25 (CAS CATO-C4X-181125)
- Pranoprofen Impurity 2 (CAS 52549-19-6)
- Pranoprofen Impurity 66 (CAS CATO-C4X-181166)
- Pranoprofen Impurity 7 (CAS CATO-C4X-18117)
Recommended Standards
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- Estazolam Impurity 3 (CAS 10352-28-0)
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- Pyronaridine Impurity 20 (CAS CATO-C4X-297820)
- Ruilugoli lmpurity 128 (CAS CATO-C4X-2429128)
- Phenylephrine Impurity 35 (CAS 57236-57-4)
- Afoxolaner Impurity 23 (CAS CATO-C4X-313723)
- 4-Bromo-2-(2,6-dichlorophenyl)-1H-imidazo[4,5-c]pyridine (CAS 1334411-79-8)
- 2-{[5-(4-tert-Butylphenyl)-4-(4-methylphenyl)-4h-1,2,4-triazol-3-yl]sulfanyl}acetic acid (CAS 848989-94-6)
- 1-(1-(Fluoromethyl)-2-oxabicyclo[2.1.1]hexan-4-yl)ethanone (CAS 2573214-02-3)
- N-((4-methyl-1,2,5-oxadiazol-3-yl)methyl)thietan-3-amine (CAS 1861867-00-6)
- (6-Bromo-[2,2'-bipyridin]-4-yl)boronic acid (CAS 2225170-58-9)
- Tadalafil Impurity 146 (CAS CATO-C4X-1087146)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
Why CATO?
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