4-Bromo-2,3-dihydrobenzofuran-5-ol CAS 40492-49-7
| CAS No. | 40492-49-7 |
| Molecular Formula | C8H7BrO2 |
| Molecular Weight | 215.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Bromo-2,3-dihydrobenzofuran-5-ol.
4-Bromo-2,3-dihydrobenzofuran-5-ol (CAS 40492-49-7), molecular formula C8H7BrO2 and molecular weight 215.04 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, 4-Bromo-2,3-dihydrobenzofuran-5-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 215.04 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Bromo-2,3-dihydrobenzofuran-5-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.
Physical & Chemical Properties
| Molecular Formula | C8H7BrO2 |
| Molecular Weight | 215.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 6-Bromo-1,3-dihydroisobenzofuran-1-ol (CAS 100655-92-3)
- 2-Bromo-3-methoxybenzaldehyde (CAS 10401-18-0)
- 4-bromo-3-(difluoromethyl)-1-methyl-pyrazole (CAS 1089212-38-3)
- 1-(2-Bromo-5-hydroxyphenyl)ethan-1-one (CAS 1127422-81-4)
- 1-(2-Bromo-3-hydroxyphenyl)ethan-1-one (CAS 1232407-20-3)
- 2-Bromo-3-(hydroxymethyl)benzaldehyde (CAS 1255794-73-0)
- 2-Bromo-6-methoxybenzaldehyde (CAS 126712-07-0)
- 5-Bromo-2,3-dimethylcyclohexa-2,5-diene-1,4-dione (CAS 13070-27-4)
Recommended Standards
- 4-bromo-2-(difluoromethyl)-1-methyl-imidazole (CAS 2248358-20-3)
- 4-Bromo-2-methoxybenzaldehyde (CAS 43192-33-2)
- 4’-Bromo-3’-hydroxyacetophenone (CAS 73898-22-3)
- 4-Bromo-2-methylbenzoic Acid (CAS 68837-59-2)
- 8-Ethoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline (CAS 2818959-30-5)
- 2,4'-Dihydroxydiphenylmethane (CAS 2467-03-0)
- 4-chloro-3-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 688782-02-7)
- Methyl (2-(3-(trifluoromethyl)-1h-pyrazol-1-yl)acetyl)glycinate (CAS 1156076-80-0)
- 2-Amino-5,6-dichloro-3,4-dihydroquinazoline Hydrobromide (CAS 327602-34-6)
- 2-{methyl[(propan-2-ylcarbamoyl)methyl]amino}acetic acid (CAS 900641-07-8)
- 1-(5-Methylpyridin-2-yl)piperidin-4-amine hydrochloride (CAS 1185319-44-1)
- n6,n6-Dimethyl-9h-purine-2,6-diamine (CAS 5437-49-0)
- 2-(3-Aminoazetidin-1-yl)-N-(3-methoxypropyl)acetamide (CAS 1342136-65-5)
- Glu17-Semaglutide (CAS CATO-C4X-2226209)
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