Diclofenac sodium Impurity 39 CAS CATO-C4X-105139
| CAS No. | CATO-C4X-105139 |
| Molecular Formula | C14H9Cl2NO3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Diclofenac sodium Impurity 39 (CAS CATO-C4X-105139), a pharmacopoeial impurity reference standard (molecular formula C14H9Cl2NO3Na, MW 333.12 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C14H9Cl2NO3Na, Diclofenac sodium Impurity 39 contains a salt form, a nitrogen-containing heterocyclic scaffold, 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 333.12 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).
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 | C14H9Cl2NO3 Na |
| Molecular Weight | 333.12 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Diclofenac Standards
- Diclofenac Impurity 21 (CAS 105836-68-8)
- Diclofenac Impurity 8 (CAS 106610-60-0)
- Diclofenac Epolamine (CAS 119623-66-4)
- Diclofenac Impurity 60 (CAS 120339-20-0)
- Diclofenac Impurity 19 (CAS 1205-40-9)
- Diclofenac Impurity 31 (CAS 1219112-85-2)
- Diclofenac Sodium Impurity 34 (CAS 123790-84-1)
- Diclofenac impurity f (CAS 124426-56-8)
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- 2930-05-4 ((Benzyloxy)methyl)benzene Oxirane, ((phenylmethoxy)methyl)- (9CI) Propane, 1-(benzyloxy)-2,3-epoxy- 5-17-03-00016 (Beilstein Handbook Reference) Benzyl glycidyl ether 1-(Benzyloxy)-2,3-epoxypropane (Benzyloxymethyl)oxirane BRN 0115279 EINECS 220-899-5 ((Phenylmethoxy)methyl)oxirane (CAS 2930-05-4)
- Anorexigenic Peptide (CAS 69275-10-1)
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