Ethyl (E)-3-oxo-2-(3-oxoisobenzofuran-1(3H)-ylidene)butanoate CAS 1164509-62-9
| CAS No. | 1164509-62-9 |
| Molecular Formula | C14H12O5 |
| Molecular Weight | 260.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 260.24 g/mol gives Ethyl (E)-3-oxo-2-(3-oxoisobenzofuran-1(3H)-ylidene)butanoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl (E)-3-oxo-2-(3-oxoisobenzofuran-1(3H)-ylidene)butanoate (CAS 1164509-62-9) is a high-purity analytical reference standard with the molecular formula C14H12O5 and a molecular weight of 260.24 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, Ethyl (E)-3-oxo-2-(3-oxoisobenzofuran-1(3H)-ylidene)butanoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 260.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Ethyl (E)-3-oxo-2-(3-oxoisobenzofuran-1(3H)-ylidene)butanoate 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 | C14H12O5 |
| Molecular Weight | 260.24 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
Recommended Standards
- 5-(4-formylphenoxymethyl)-3-methylfuran-2-carboxylic acid (CAS 1153306-99-0)
- 4-(Trifluoromethyl)benzo[b]thiophene-2-carbohydrazide (CAS 1171927-41-5)
- Sofosbuvir Impurity 12 (CAS 114262-49-6)
- 5-(Trifluoromethyl)benzo[b]thiophene-2-carbohydrazide (CAS 1171927-43-7)
- Dimethyl [1,1'-biphenyl]-3,3'-dicarboxylate (CAS 1751-97-9)
- trans-4-Morpholinocyclohexanamine dihydrochloride (CAS 412356-24-2)
- 9-epi-Quinidine (CAS 572-59-8)
- Vitamin K1 Impurity 72 (CAS 102608-53-7)
- (4'-Methyl-[1,1'-biphenyl]-4-yl)methanamine hydrochloride (CAS 1173246-91-7)
- 6-(2,2,2-Trifluoroacetyl)pyridine-3-sulfonyl chloride (CAS 2817695-75-1)
- 2-(2,2-Dimethylpyrrolidin-1-yl)ethan-1-amine (CAS 35018-17-8)
- Methyl 3-(2-chloroacetamido)-4-methylthiophene-2-carboxylate (CAS 87685-13-0)
- 4-(2-Thiophen-2-yl-benzyl)-tetrahydro-pyran-4-carboxylic acid (CAS 1316221-73-4)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
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