Sulfasalazine impurity 14 CAS 42753-55-9
| CAS No. | 42753-55-9 |
| Molecular Formula | C19H16N4O5S |
| Molecular Weight | 412.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 412.42 g/mol gives Sulfasalazine impurity 14 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Sulfasalazine impurity 14 (CAS 42753-55-9, C19H16N4O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C19H16N4O5S, Sulfasalazine impurity 14 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 412.42 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).
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 Sulfasalazine impurity 14 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 | C19H16N4O5S |
| Molecular Weight | 412.42 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Sulfasalazine Standards
- Sulfasalazine-D4 (CAS 1346606-50-5)
- Sulfasalazine EP Impurity F (CAS 66364-71-4)
- Sulfasalazine (CAS 599-79-1)
- Sulfasalazine Impurity 17 (CAS CATO-C4X-141917)
- Sulfasalazine EP Impurity D (CAS 66364-70-3)
- Sulfasalazine Impurity 27 (CAS 501111-03-1)
- Sulfasalazine Impurity 19 (CAS 2033064-46-7)
- Sulfasalazine Impurity 20 (CAS CATO-C4X-141920)
Recommended Standards
- N-Nitroso Amoxicillin Impurity 104 (CAS CATO-C4X-1148104)
- Fluocinolone Acetonide impurity 21 (CAS CATO-C4X-238121)
- 4-{4-[(1E)-(2-phenylhydrazin-1-ylidene)methyl]pyrimidin-2-yl}phenyl 4-fluorobenzoate (CAS 477870-99-8)
- Fluocinolone Acetonide impurity 22 (CAS CATO-C4X-238122)
- Vinpocetine Impurity 35 (CAS CATO-C4X-184335)
- Cenobamate Impurity 60 (CAS CATO-C4X-241660)
- Biotin EP Impurity F (CAS 101469-35-6)
- 5-Chloro-3-(trifluoromethyl)pyridin-2(1H)-one (CAS 1214342-70-7)
- 5-(Chloromethyl)-2-fluorobenzonitrile (CAS 1260892-59-8)
- 2-(4-(Benzyloxy)phenyl)-2-oxoacetaldehyde hydrate (CAS 63846-62-8)
- 5-Bromo-2-propylpyrimidine (CAS 1227960-44-2)
- (2S)-2-Amino-1-(3-((benzyl(ethyl)amino)methyl)pyrrolidin-1-yl)propan-1-one (CAS 1354027-10-3)
- Ethyl N-[(Z)-[2-(4-chlorophenyl)hydrazin-1-ylidene](cyano)carbonyl]carbamate (CAS 123822-72-0)
- Copper Peptide ·2 acetate salt (CAS 130120-57-9)
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