5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with ethenylbenzene and 2-propen-1-ol CAS 65186-04-1
| CAS No. | 65186-04-1 |
| Molecular Formula | C9H4O5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with ethenylbenzene and 2-propen-1-ol 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.
5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with ethenylbenzene and 2-propen-1-ol (CAS 65186-04-1), molecular formula C9H4O5C8H8C3H6O and molecular weight 354.36 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H4O5C8H8C3H6O, 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with ethenylbenzene and 2-propen-1-ol contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 354.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C9H4O5 C8H8 C3H6O |
| Molecular Weight | 354.36 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Isobenzofurancarboxylic Standards
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,4-cyclohexanedimethanol and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione (CAS 153640-63-2)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,1'-methylenebis[4-isocyanatobenzene] (CAS 25053-57-0)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-methylenebis[benzenamine] and rel-(3aR,4S,7R,7aS)-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione (CAS 53368-84-6)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 5,5'-carbonylbis[1,3-isobenzofurandione], 2,4-diisocyanato-1-methylbenzene and 1,1'-methylenebis[4-isocyanatobenzene] (CAS 62009-59-0)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 1,2-propanediol (CAS 63948-88-9)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 2,2'-oxybis[ethanol] and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione (CAS 70942-07-3)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 4,4'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] (CAS 72968-66-2)
- 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis[benzenamine] and 3,3'-[sulfonylbis(4,1-phenyleneoxy)]bis[benzenamine] (CAS 72968-67-3)
Recommended Standards
- 5-(2,6-Difluorophenyl)furan-2-carboxylic acid (CAS 1152606-60-4)
- Methyl 3-{[(2-chloroethyl)carbamoyl]amino}-4-methylbenzoate (CAS 64624-41-5)
- 1825-82-7 Silane, trichloroethoxy- DTXSID60171301 (CAS 1825-82-7)
- 2-Methyl-5-(pyridin-3-yl)phenol (CAS 1214377-81-7)
- 5-(3-Bromophenyl)pyridine-3-carbaldehyde (CAS 887973-69-5)
- 2-Butoxy(ethanol- (CAS 163127-01-3)
- n-{[5-(2-amino-1,3-thiazol-4-yl)thiophen-2-yl]methyl}acetamide (CAS 162277-86-3)
- 5-Butoxy-4-chloropyridazin-3(2H)-one (CAS 38717-15-6)
- (S)-1-(3-chloro-4-methoxyphenyl)propan-1-amine (CAS 1213319-01-7)
- Semaglutide impurity 31 (CAS CATO-C4X-222631)
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