2,5-bis(m-tolylamino)cyclohexa-2,5-diene-1,4-dione CAS CATO-C3D-262168
| CAS No. | CATO-C3D-262168 |
| Molecular Formula | C20H18N2O2 |
| Molecular Weight | 318.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,5-bis(m-tolylamino)cyclohexa-2,5-diene-1,4-dione (CAS CATO-C3D-262168), molecular formula C20H18N2O2 and molecular weight 318.37 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H18N2O2, 2,5-bis(m-tolylamino)cyclohexa-2,5-diene-1,4-dione contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 318.37 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C20H18N2O2 |
| Molecular Weight | 318.37 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Recommended Standards
- tert-Butyl 7-methoxy-2-oxospiro[indoline-3,3'-pyrrolidine]-1'-carboxylate (CAS 2089301-07-3)
- Ethanediamide, N1-(2-methyl-1-naphthalenyl)-N2-(phenylmethyl)- (CAS 2072108-68-8)
- tert-Butyl 7-hydroxy-2-oxospiro[indoline-3,4'-piperidine]-1'-carboxylate (CAS 2385240-93-5)
- Donepezil Impurity 67 (CAS CATO-C4X-103967)
- 1-Amino-9H-fluoren-9-ol (CAS 6957-58-0)
- 1-(4-Chloropyrimidin-2-yl)azetidine-3-carboxylic acid (CAS 1289388-50-6)
- Methyl 2-amino-6-bromonicotinate (CAS 1227048-73-8)
- N-[(Pyridin-2-yl)methyl]-3-[5-(trifluoromethyl)pyridin-2-yl]benzamide (CAS 1092345-85-1)
- Terbutaline impurity 127 (CAS CATO-C4X-1183127)
- 2-(4-chlorobutyl)-2-methyl-1,3-dioxolane (CAS 57558-50-6)
- (3aS,4S,6S,6aR)-6-Allyl-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-ol (CAS 1535192-99-4)
- Trimethyl(tosylethynyl)silane (CAS 34452-56-7)
- Benzyltriethylammonium Chloride (CAS 56-37-1)
- Acetyl Tetrapeptide- 15 (CAS 928007-64-1)
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