3,3'-(Ethane-1,2-diylidene)bis(isobenzofuran-1(3H)-one) CAS 63187-50-8
| CAS No. | 63187-50-8 |
| Molecular Formula | C21H21N |
| Molecular Weight | 287.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3,3'-(Ethane-1,2-diylidene)bis(isobenzofuran-1(3H)-one) (CAS 63187-50-8), a certified reference material (molecular formula C21H21N, MW 287.40 g/mol) for analytical method development and quality control.
3,3'-(Ethane-1,2-diylidene)bis(isobenzofuran-1(3H)-one) (C21H21N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H21N |
| Molecular Weight | 287.40 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 |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 4-Methoxy-1-methylindolin-2-one (CAS 7699-21-0)
- (2S,3R,4S,5R)-2-((4-Hydroxyphenyl)amino)tetrahydro-2H-pyran-3,4,5-triol (CAS 470692-54-7)
- 5-Chloro-6-((3,3-difluorocyclobutyl)methoxy)pyridin-3-ol (CAS 1355066-37-3)
- 5-(tert-Butylthio)-N,N,6-trimethylpyridin-2-amine (CAS 1355200-91-7)
- 2-(Azetidin-3-yl)-5-methylpyrimidine (CAS 1237171-23-1)
- Sucrose 6-Benzoate (CAS 127924-16-7)
- 2-((2,4-Dichlorobenzyl)thio)-3-(4-methoxyphenyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 477330-87-3)
- N-(5,7-Diphenyl-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)furan-2-carboxamide (CAS 498570-03-9)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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