(E)-2-(3-Cyano-4-(2-(7-hydroxy-2-oxo-2H-chromen-3-yl)vinyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile CAS 2123485-87-8
| CAS No. | 2123485-87-8 |
| Molecular Formula | C21H13N3O4 |
| Molecular Weight | 371.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-2-(3-Cyano-4-(2-(7-hydroxy-2-oxo-2H-chromen-3-yl)vinyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile (CAS 2123485-87-8) is a high-purity analytical reference standard with the molecular formula C21H13N3O4 and a molecular weight of 371.35 g/mol.
(E)-2-(3-Cyano-4-(2-(7-hydroxy-2-oxo-2H-chromen-3-yl)vinyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile (C21H13N3O4) contains a flavonoid 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 (E)-2-(3-Cyano-4-(2-(7-hydroxy-2-oxo-2H-chromen-3-yl)vinyl)-5,5-dimethylfuran-2(5H)-ylidene)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.
Physical & Chemical Properties
| Molecular Formula | C21H13N3O4 |
| Molecular Weight | 371.35 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 3 |
Related E Standards
- 3-Cyano-6-(1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyridin-4-yl trifluoromethanesulfonate (CAS 2068064-97-9)
- Methyl 5-cyano-5-(3-(cyclopentyloxy)-4-methoxyphenyl)-2-oxocyclohexanecarboxylate (CAS 152630-49-4)
- 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 4-((2-oxopyrrolidin-1-yl)methyl)benzoate (CAS 871672-87-6)
- Ethyl 5-cyano-6-[(4-methylbenzyl)amino]-2-phenylnicotinate (CAS 477866-21-0)
- 4-Cyano-3-fluorophenyl (1r,4r)-4'-propyl-[1,1'-bi(cyclohexane)]-4-carboxylate (CAS 94353-26-1)
- N-(3-Cyano-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)-2-(methyl(4-(methylthio)benzyl)amino)acetamide (CAS 746615-92-9)
- Methyl 5-cyano-2-methyl-6-(2,4,5-trichlorophenoxy)nicotinate (CAS 303146-51-2)
- 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 2-(naphthalen-2-ylthio)acetate (CAS 875324-68-8)
Recommended Standards
- (2E)-1-(Naphthalen-2-yl)-3-{[4-(trifluoromethoxy)phenyl]amino}but-2-en-1-one (CAS 478041-00-8)
- 2-([1,1'-Biphenyl]-4-yloxy)-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 302551-12-8)
- 2-(4-Nitrophenyl)-1H-anthra[1,2-d]imidazole-6,11-dione (CAS 1609494-01-0)
- 2,2-Diphenyl-N-(4-(trifluoromethoxy)phenyl)acetamide (CAS 425372-89-0)
- [γ-Glu]15 Semaglutide (CAS CATO-C4X-222690)
- (S)-7-bromo-6-fluorochroman-4-ol (CAS 1567918-90-4)
- Cholesterol β-D-glucoside (CAS 7073-61-2)
- N'-(1-benzylpiperidine-4-carbonyl)-2,4,6-trimethylbenzenesulfonohydrazide (CAS 478064-40-3)
- Z-Arg-Arg-AMC (I-1135.0050) (CAS 88937-61-5)
- 3-[(2,3-Dichlorophenoxy)methyl]piperidine (CAS 946713-10-6)
- 2-Amino-2-phenylbutan-1-ol hydrochloride (CAS 876-42-6)
- 2-Amino-4-hexynoic acid (CAS 29834-75-1)
- Pcb No. 23 (CAS 55720-44-0)
- Neuropeptide S (rat) (CAS 412938-75-1)
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