1,3-Isobenzofurandione, 4,7-dibromo CAS 25834-16-6
| CAS No. | 25834-16-6 |
| Molecular Formula | C8H2Br2O3 |
| Molecular Weight | 305.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 305.91 g/mol gives 1,3-Isobenzofurandione, 4,7-dibromo distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1,3-Isobenzofurandione, 4,7-dibromo (CAS 25834-16-6), molecular formula C8H2Br2O3 and molecular weight 305.91 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 1,3-Isobenzofurandione, 4,7-dibromo is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 305.91 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 1,3-Isobenzofurandione, 4,7-dibromo 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 | C8H2Br2O3 |
| Molecular Weight | 305.91 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
Related Isobenzofurandione Standards
- 1,3-Isobenzofurandione, tetrahydro-5-methyl- (CAS 34090-76-1)
- 1,3-Isobenzofurandione, polymer with 2,2'-oxybis[ethanol] and 2,2,4-trimethyl-1,3-pentanediol, 2-ethylhexyl ester (CAS 102030-00-2)
- 1,3-Isobenzofurandione, polymer with 1,3-butanediol, 1,2-ethanediol and 2,5-furandione, reaction products with 3-(triethoxysilyl)-1-propanamine (CAS 102783-83-5)
- 1,3-Isobenzofurandione, 5,5'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis-, polymer with 4,4'-oxybis[benzenamine] and 4,4'-sulfonylbis[benzenamine] (CAS 103443-55-6)
- 1,3-Isobenzofurandione, 5,5'-[[1,1'-biphenyl]-4,4'-diylbis(oxy)]bis-, polymer with 1,3-isobenzofurandione and 4,4'-sulfonylbis[benzenamine] (CAS 125881-35-8)
- 1,3-Isobenzofurandione, 5,5'-carbonylbis-, polymer with 1,3-diisocyanatomethylbenzene and 1,1'-methylenebis[isocyanatobenzene] (CAS 152187-64-9)
- 1,3-Isobenzofurandione, 3a,4,5,7a-tetrahydro-7-methyl-5-(tetrahydro-2,5-dioxo-3-furanyl)-, polymer with 4,4'-oxybis[benzenamine] (CAS 73038-27-4)
- 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-, polymer with 1,2-ethanediol and 2,5-furandione (CAS 25749-55-7)
Recommended Standards
- 3,5-Dichloro-4-fluoro-2-iodoaniline (CAS 1699384-74-1)
- 5,6-Dibromoisobenzofuran-1,3-dione (CAS 65237-17-4)
- 1,2,3,5-Tetrachloro-4,6-dinitrobenzene (CAS 28073-03-2)
- Pitolisant D10 (CAS CATO-C4X-252047)
- tert-Butyl 4-(2-fluoro-4-nitrophenoxy)piperidine-1-carboxylate (CAS 250371-88-1)
- Methyl 4-[(2,5-dichlorophenyl)(methylsulfonyl)amino]butanoate (CAS 1858251-45-2)
- Pitavastatin calcium (CAS 147526-32-7)
- 3-(2-Chlorophenyl)-3-phenylpropanoic acid (CAS 286947-86-2)
- 3-(3-(Chloromethyl)-1,2,4-oxadiazol-5-yl)-N-(4-chlorophenyl)propanamide (CAS 945138-51-2)
- 3-Methoxy-6-methylpyrazin-2-amine (CAS 89464-88-0)
- 2-acetamido-3-(thiophen-2-yl)propanoic acid (CAS 67206-07-9)
- Benzyl (3S,5S)-3-amino-5-fluoropiperidine-1-carboxylate hydrochloride (CAS 2171225-81-1)
- Simvastatin EP Impurity B (CAS 145576-25-6)
- TRAF6 Control Peptide trifluoroacetate salt (CAS 852690-80-3)
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