3,4-Dibromo-5-hydroxyfuran-2(5H)-one CAS 766-38-1
| CAS No. | 766-38-1 |
| Molecular Formula | C4H2Br2O3 |
| Molecular Weight | 257.86 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3,4-Dibromo-5-hydroxyfuran-2(5H)-one (C4H2Br2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 257.86 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3,4-Dibromo-5-hydroxyfuran-2(5H)-one (CAS 766-38-1), molecular formula C4H2Br2O3 and molecular weight 257.86 g/mol, is a CATO reference standard with documented purity and traceability.
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 3,4-Dibromo-5-hydroxyfuran-2(5H)-one 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 | C4H2Br2O3 |
| Molecular Weight | 257.86 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- (E)-2,3-Dibromo-4-oxobut-2-enoic acid (CAS 90994-06-2)
- 2,3-Dibromo-4-oxobut-2-enoic acid (CAS 21577-50-4)
- 2,5-Dibromo-4-fluoro-1-methyl-1H-imidazole (CAS 1824064-07-4)
- 1,5-Dibromo-2,4-pentanedione (CAS 68864-57-3)
- 2,2-Dibromo-1-methylcyclopropane-1-carboxylic acid (CAS 5365-21-9)
- 1,5-Dibromo-3,3-dimethylpentane (CAS 37746-17-1)
- 1,2-Dibromo-1-chloro-2,2-difluoroethane (CAS 421-36-3)
- 1,2-Dibromo-3-thiocyanatoprop-1-ene (CAS 102367-28-2)
Recommended Standards
- 3,4-Dibromodihydrofuran-2,5-dione (CAS 45669-18-9)
- Mucobromic acid 2,3-dibromomalealdehydic acid (2z)-2,3-dibromo-4-oxobut-2-enoic acid 2,3-dibromo-4-oxo-2-butenoic acid dibromoaldehydoacrylic acid a,b-dibromo-b-formylacrylic acid 2,3-dibromomaleic aldehyde acid Bromomucic acid 488-11-9 (CAS 488-11-9)
- 2-Chloro-4-pyridylzinc bromide (CAS 1227940-97-7)
- (5,7-Dichloro-2-oxo-1,2-dihydroquinolin-3-yl)boronic acid (CAS 172843-58-2)
- (S)-1-(3,5-dibromophenyl)-2-methoxyethan-1-amine (CAS 1269956-54-8)
- (5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)methanamine (CAS 1976012-69-7)
- 3-Oxo-3-[4-(phenylsulfonyl)-1-piperazinyl]propanoic acid (CAS 937676-52-3)
- Hydrochlorothiazide EP Impurity A (CAS 58-94-6)
- Docosanoic-12,12,13,13-d4 Acid (CAS 1219804-98-4)
- (R)-alpha-Methyl-4-methoxybenzyl Alcohol (CAS 1517-70-0)
- 6-Chloro-2-Benzoxazolinone (CAS 19932-84-4)
- 1-(4-Iodophenyl)-N,N-dimethylmethanamine (CAS 140621-52-9)
- 2,4-Dichloro-7-phenyl-6,7-dihydro-5H-cyclopenta[d]pyrimidine (CAS 1263868-24-1)
- Mast Cell Degranulating (MCD) Peptide (CAS 32908-73-9)
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