7-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]hept-6-ynal CAS 2700243-82-7
| CAS No. | 2700243-82-7 |
| Molecular Formula | C20H20N2O4 |
| Molecular Weight | 352.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
7-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]hept-6-ynal (CAS 2700243-82-7), molecular formula C20H20N2O4 and molecular weight 352.38 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 7-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]hept-6-ynal (C20H20N2O4) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C20H20N2O4 |
| Molecular Weight | 352.38 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 2 |
Related dioxo Standards
- 7-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-5-yl]hept-6-ynal (CAS 2619512-21-7)
- 7-[2-(2,6-dioxo-3-piperidyl)-3-oxo-isoindolin-5-yl]hept-6-ynal (CAS 2762039-54-1)
- 3-(2,4-Dioxo-1,4-dihydroquinazolin-3(2H)-yl)-N-methyl-N-(2-(pyridin-2-yl)ethyl)propanamide (CAS 896366-52-2)
- 3-[2-(2,6-dioxo-3-piperidyl)-1,3-dioxo-isoindolin-4-yl]oxypropanoic acid (CAS 2369068-42-6)
- 9,10-Dioxo-9,10-dihydroanthracene-1,8-diyl dipropionate (CAS 97968-49-5)
- 4-(2-(2,4-Dioxo-3,4-dihydropyrimidin-1(2H)-yl)acetamido)benzoic acid (CAS 4113-88-6)
- 1-Benzyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[2,3-d]pyrimidine-6-sulfonyl chloride (CAS 1334145-97-9)
- 1,3-Dioxo-2-(4-(propoxycarbonyl)phenyl)isoindoline-5-carboxylic acid (CAS 100162-30-9)
Recommended Standards
- 5,8-Difluoro-3,4,4-trimethyl-3,4-dihydro-2H-[1,3'-biquinolin]-2-one (CAS 918646-25-0)
- 5,7-Dimethyl-2-(methylthio)-6-(3-(trifluoromethyl)benzyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 439112-28-4)
- 5-(4-(4-(Prop-2-yn-1-yloxy)benzoyl)phenoxy)pentanoic acid (CAS 2140866-79-9)
- 8-(((4-Methoxybenzyl)amino)methyl)-2,3-dihydro-[1,4]dioxino[2,3-g]quinolin-7(6H)-one (CAS 496782-57-1)
- 6-Guanidinohexane-1-sulfonic acid (CAS 82154-75-4)
- N-(2-Hydroxy-2-methyl-4-(methylthio)butyl)-[1,1'-biphenyl]-4-carboxamide (CAS 1421531-59-0)
- 5-(5-Chlorothiophen-2-yl)-5-oxopentanoic acid (CAS 845790-40-1)
- 6-(6-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)pyridin-2(1H)-one (CAS 596825-56-8)
- Cetirizine Dihydrochloride EP Impurity B (CAS 942193-17-1)
- 2-Amino-3-(2-hydroxy-5-methylphenyl)propanoic acid (CAS 24146-05-2)
- 2-(Difluoromethyl)-6-hydroxypyridine-3-sulfonamide (CAS 1805322-33-1)
- 1169977-61-0 4-{1-[(Cyclopentylamino)carbonyl]piperidin-4-yl}benzoic acid MFCD14281895 (CAS 1169977-61-0)
- 5-Bromo-2-chloro-4-methoxybenzaldehyde (CAS 1033723-49-7)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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