856436-16-3 Methanesulfonic acid--5-(pyridin-3-yl)-3-[(1H-pyrrol-2-yl)methylidene]-1,3-dihydro-2H-indol-2-one (1/1) DTXSID80648020 CAS 856436-16-3
| CAS No. | 856436-16-3 |
| Molecular Formula | C18H13N3O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 856436-16-3 Methanesulfonic acid--5-(pyridin-3-yl)-3-[(1H-pyrrol-2-yl)methylidene]-1,3-dihydro-2H-indol-2-one (1/1) DTXSID80648020 is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
856436-16-3 Methanesulfonic acid--5-(pyridin-3-yl)-3-[(1H-pyrrol-2-yl)methylidene]-1,3-dihydro-2H-indol-2-one (1/1) DTXSID80648020 (CAS 856436-16-3) is a high-purity analytical reference standard with the molecular formula C18H13N3OCH4O3S and a molecular weight of 383.42 g/mol.
The molecular framework of 856436-16-3 Methanesulfonic acid--5-(pyridin-3-yl)-3-[(1H-pyrrol-2-yl)methylidene]-1,3-dihydro-2H-indol-2-one (1/1) DTXSID80648020 (C18H13N3OCH4O3S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 856436-16-3 Methanesulfonic acid--5-(pyridin-3-yl)-3-[(1H-pyrrol-2-yl)methylidene]-1,3-dihydro-2H-indol-2-one (1/1) DTXSID80648020 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 | C18H13N3O CH4O3S |
| Molecular Weight | 383.42 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Ethyl 5-fluoro-2-iodobenzoate (CAS 127500-78-1)
- 4-Bromo-6,7-dimethoxy-2-methylquinoline (CAS 1378260-34-4)
- 5-(3-Thienyl)-1H-indole-3-carbaldehyde (CAS 893733-97-6)
- 1-benzyl-2-methylpiperidin-3-ol (CAS 1256091-41-4)
- 2-(4-Chlorophenyl)-4-oxo-1,4-dihydroquinoline-6-carboxylic acid (CAS 90034-16-5)
- 2-((2-Nitrophenyl)thio)benzo[d]isothiazol-3(2h)-one 1,1-dioxide (CAS 16239-03-5)
- Benzyl 2-(6-methylpyridin-2-yl)pyrrolidine-1-carboxylate (CAS 1352499-04-7)
- 2-bromo-1,1-dimethoxybutane (CAS 868-36-0)
- Methyl 3-(bromomethyl)-5-methoxybenzoate (CAS 133357-62-7)
- Semaglutide Impurity 160 (x TFA Salt) (CAS CATO-C4X-2226160)
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