Topiroxostat Impurity 37 CAS 2044706-68-3
| CAS No. | 2044706-68-3 |
| Molecular Formula | C13H8N6 |
| Molecular Weight | 248.24 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.
As a process- or degradation-related impurity, Topiroxostat Impurity 37 (CAS 2044706-68-3, C13H8N6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C13H8N6, Topiroxostat Impurity 37 contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 248.24 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).
As a certified reference material (CRM), Topiroxostat Impurity 37 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 | C13H8N6 |
| Molecular Weight | 248.24 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 6 |
Related Topiroxostat Standards
- Topiroxostat (CAS 577778-58-6)
- Topiroxostat Impurity 36 (CAS CATO-C4X-105536)
- Topiroxostat Impurity 7 (CAS 2044704-74-5)
- Topiroxostat-d4 (CAS CATO-C4X-105533)
- Topiroxostat Impurity 48 (CAS 4329-75-3)
- Topiroxostat Impurity 63 (CAS 445218-61-1)
- Topiroxostat Impurity 21 (CAS CATO-C4X-105521)
- Topiroxostat Impurity 20 (CAS CATO-C4X-105520)
Recommended Standards
- Memantine Impurity 43 (CAS 53343-18-3)
- Tegoprazan impurity 37 (CAS CATO-C4X-229737)
- (9-Oxo-4,5,6,7,8,9-hexahydro-[1,2,4]triazolo-[5,1-b]quinazolin-2-yl)-acetic acid 5243AE 540514-18-9 C11H12N4O3 (CAS 540514-18-9)
- Indolo[2,1-b]quinazoline-6,12-dione (CAS 13220-57-0)
- Oxybutynin Impurity 7 (CAS CATO-C4X-19727)
- Venlafaxine EP Impurity H（Mixture of Enantiomers） (CAS 1329795-88-1)
- Desmopressin Impurity 36 (CAS CATO-C4X-221536)
- 2-chloro-3-tetrahydropyran-4-yl-propanal (CAS 2306265-28-9)
- 5-Chloro-1,3-benzothiazole-4-sulfonyl chloride (CAS 1094671-88-1)
- Benzo[f]quinoxaline (CAS 230-33-1)
- Methyl 2-acetamido-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate (CAS 328023-40-1)
- 2-(Aminomethyl)-6-chloro-4-(trifluoromethyl)phenol (CAS 1783956-84-2)
- 6-Bromo-4-ethylpyridin-3-amine (CAS 929617-29-8)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
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