3-(4,5-Dimethoxy-2-nitrophenyl)-2-(3,4,5-trimethoxyphenyl)acrylic acid CAS 353-23-6
| CAS No. | 353-23-6 |
| Molecular Formula | C20H21NO9 |
| Molecular Weight | 419.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(4,5-Dimethoxy-2-nitrophenyl)-2-(3,4,5-trimethoxyphenyl)acrylic acid is closely related to a flavonoid 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 3-(4,5-Dimethoxy-2-nitrophenyl)-2-(3,4,5-trimethoxyphenyl)acrylic acid (CAS 353-23-6), a certified reference material (molecular formula C20H21NO9, MW 419.38 g/mol) for analytical method development and quality control.
The molecular framework of 3-(4,5-Dimethoxy-2-nitrophenyl)-2-(3,4,5-trimethoxyphenyl)acrylic acid (C20H21NO9) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
As a certified reference material (CRM), 3-(4,5-Dimethoxy-2-nitrophenyl)-2-(3,4,5-trimethoxyphenyl)acrylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H21NO9 |
| Molecular Weight | 419.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Dimethoxy Standards
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Recommended Standards
- 2-((5-Cyano-4-(trifluoromethyl)-[2,4'-bipyridin]-6-yl)thio)-N-(4-methyloxazol-2-yl)acetamide (CAS 625378-11-2)
- 3-Amino-N-(4-methyl-1,3-oxazol-2-yl)-6-(pyridin-4-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 626225-38-5)
- (3S,11AR)-N-(2,4-difluorobenzyl)-6-methoxy-3-methyl-5,7-dioxo-2,3,5,7,11,11a-hexahydrooxazolo[3,2-a]pyrido[1,2-d]pyrazine-8-carboxamide (CAS 1335210-25-7)
- 4-Bromo-5-methoxy-2-methyl-N-(2,2,6,6-tetramethylpiperidin-4-yl)benzenesulfonamide (CAS 898647-24-0)
- 3-(Tosyloxy)propyl phthalimide (CAS 88597-06-2)
- N-(3-(Dipropylamino)phenyl)acetamide (CAS 51732-34-4)
- (2-(Tert-butyl)-5-cyclopropylpyridin-3-yl)boronic acid (CAS 2225169-23-1)
- 2-(3-(4-(Difluoromethoxy)phenyl)-1,2,4-oxadiazol-5-yl)aniline (CAS 1779133-66-2)
- Marein (CAS 535-96-6)
- 22934-99-2 4H-1-Benzopyran-4-one,5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-6-methoxy- (CAS 22934-99-2)
- 2-Fluoro-2-methyl-2,3-dihydro-1H-inden-1-one (CAS 242793-47-1)
- Ethyl 2-(5-(tert-butyl)-2-oxocyclohexyl)-2-oxoacetate (CAS 15839-52-8)
- (S)-3-((tert-Butyldimethylsilyl)oxy)-1,1-difluoropropan-2-amine (CAS 2059154-98-0)
- a2,3-Sialylglycopeptide (CAS 189035-43-6)
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