2-(Diphenylmethylene)-1H-indene-1,3(2H)-dione CAS 13248-12-9
| CAS No. | 13248-12-9 |
| Molecular Formula | C22H14O2 |
| Molecular Weight | 310.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-(Diphenylmethylene)-1H-indene-1,3(2H)-dione (CAS 13248-12-9), a certified reference material (molecular formula C22H14O2, MW 310.35 g/mol) for analytical method development and quality control.
2-(Diphenylmethylene)-1H-indene-1,3(2H)-dione (C22H14O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
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 | C22H14O2 |
| Molecular Weight | 310.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
Related Diphenylmethylene Standards
- 9-(Diphenylmethylene)-1,4-dihydro-1,4-methanonaphthalene (CAS 28591-78-8)
- Methyl 5-((diphenylmethylene)amino)pyrimidine-2-carboxylate (CAS 1383802-11-6)
- 3-((Diphenylmethylene)amino)-5-methylthiophene-2-carbonitrile (CAS 948015-48-3)
- Ethyl 2-((diphenylmethylene)amino)-4-methylpent-4-enoate (CAS 80741-44-2)
- N'-(diphenylmethylene)-2-(piperidin-1-yl)acetohydrazide (CAS 478247-21-1)
- 3-(Diphenylmethylene)indolin-2-one (CAS 94878-34-9)
- 6-(2-(Diphenylmethylene)hydrazineyl)quinoline (CAS 1012879-55-8)
- N'-(diphenylmethylene)-2-morpholinoacetohydrazide (CAS 339106-17-1)
Recommended Standards
- 6-Hydroxy Alosetron HCl (CAS 128486-89-5)
- 9,10-Di(1H-imidazol-1-yl)anthracene (CAS 1333418-50-0)
- Ethyl 8-cyano-4-(piperazin-1-yl)quinoline-3-carboxylate (CAS 1279214-94-6)
- 1-(1-(Tert-butoxycarbonyl)piperidin-3-yl)-5-methyl-1h-1,2,3-triazole-4-carboxylic acid (CAS 1334493-08-1)
- N-((5-(4-Nitrophenyl)-1H-1,2,4-triazol-3-yl)methyl)aniline (CAS 1171664-52-0)
- 5-(2-Furyl)-3-(trifluoromethyl)pyrazole (CAS 197507-85-0)
- 8-Methyl-3,4-dihydro-2h-1-benzopyran-4-amine hydrochloride (CAS 191608-12-5)
- tert-Butyl ((2R,4S,5R)-5-amino-4-hydroxy-1,6-diphenylhexan-2-yl)carbamate (CAS 1414933-94-0)
- 1-(2-((Benzyl(isopropyl)amino)methyl)piperidin-1-yl)-2-chloroethanone (CAS 1353944-58-7)
- 2-((3,5-Dimethylbenzyl)amino)ethan-1-ol (CAS 343789-70-8)
- 2-Butynedioic acid di-tert-butyl ester 66086-33-7 Di-tert-butyl 2-butynedioate Di-tert-butyl acetylenedicarboxylate (CAS 66086-33-7)
- (3,4-Dimethylphenyl)(5-methylfuran-2-yl)methanol (CAS 1249093-01-3)
- 11-(4-(Benzyloxy)phenyl)-3,3,7,8-tetramethyl-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-1-one (CAS 338748-37-1)
- Myosin Kinase Inhibiting Peptide (CAS 119386-39-9)
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