| CAS No. | 21493-27-6 |
| Molecular Formula | C18H9N3O3 |
| Molecular Weight | 315.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 2-(((4-Hydroxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)amino)methylene)malononitrile is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-(((4-Hydroxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)amino)methylene)malononitrile (CAS 21493-27-6), a certified reference material (molecular formula C18H9N3O3, MW 315.28 g/mol) for analytical method development and quality control.
2-(((4-Hydroxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)amino)methylene)malononitrile (C18H9N3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures 2-(((4-Hydroxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)amino)methylene)malononitrile 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.
| Molecular Formula | C18H9N3O3 |
| Molecular Weight | 315.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |