3,3-Bis(3,5-dibromo-4-hydroxyphenyl)isobenzofuran-1(3H)-one CAS 76-62-0
| CAS No. | 76-62-0 |
| Molecular Formula | C20H10Br4O4 |
| Molecular Weight | 633.91 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.
3,3-Bis(3,5-dibromo-4-hydroxyphenyl)isobenzofuran-1(3H)-one (CAS 76-62-0), molecular formula C20H10Br4O4 and molecular weight 633.91 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H10Br4O4, 3,3-Bis(3,5-dibromo-4-hydroxyphenyl)isobenzofuran-1(3H)-one contains a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 633.91 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).
As a certified reference material (CRM), 3,3-Bis(3,5-dibromo-4-hydroxyphenyl)isobenzofuran-1(3H)-one 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 | C20H10Br4O4 |
| Molecular Weight | 633.91 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
Related Bis Standards
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Recommended Standards
- 4,5,6,7-Tetrabromo-3,3-bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one (CAS 13027-28-6)
- Trans-5-(4-ethoxyphenyl)-1-phenyl-4-(piperazine-1-carbonyl)pyrrolidin-2-one hydrochloride (CAS 38123-98-7)
- 3′,3′′,5′,5′′-Tetrabromophenolphthalein (CAS 1301-20-8)
- 352518-77-5 C24:1 Ceramide (d17:1/24:1(15Z)) (CAS 352518-77-5)
- N-Benzyl-2-fluoro-N-methylethan-1-amine (CAS 139364-35-5)
- 1-(Hydroxymethyl)cyclohexane-1-carbaldehyde (CAS 24632-01-7)
- rac Demethyl Citalopram-d3 Hydrochloride (CAS 1189650-18-7)
- (4-Cyclohexylphenyl)boronic acid (CAS 374538-04-2)
- (4-(1-((Tert-butoxycarbonyl)(cyclopropyl)amino)ethyl)phenyl)boronic acid (CAS 1704073-41-5)
- 2-Chloro-4-formylthiazole (CAS 5198-79-8)
- 6,7-difluorotetralin-1-one (CAS 137114-68-2)
- Ethyl 1-benzoyl-4-methylpiperidine-4-carboxylate (CAS 162648-30-8)
- 883-93-2 FO573G4BGT 2-Phenylbenzothiazole Benzothiazole, 2-phenyl- 4-27-00-01385 (Beilstein Handbook Reference) AI3-00636 BRN 0141340 EINECS 212-935-3 NSC 1854 NSC 2034 UNII-FO573G4BGT (CAS 883-93-2)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
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