7-Bromo-5-methyl-2,3-dihydrobenzofuran-3-ol CAS 1491101-20-2
| CAS No. | 1491101-20-2 |
| Molecular Formula | C9H9BrO2 |
| Molecular Weight | 229.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7-Bromo-5-methyl-2,3-dihydrobenzofuran-3-ol is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
7-Bromo-5-methyl-2,3-dihydrobenzofuran-3-ol (CAS 1491101-20-2), molecular formula C9H9BrO2 and molecular weight 229.07 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, 7-Bromo-5-methyl-2,3-dihydrobenzofuran-3-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 229.07 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), 7-Bromo-5-methyl-2,3-dihydrobenzofuran-3-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 | C9H9BrO2 |
| Molecular Weight | 229.07 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.) | 1992 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 6-Bromo-1-methoxy-1,3-dihydroisobenzofuran (CAS 100656-03-9)
- 2-Bromo-5-(1-ethoxyethenyl)pyrazine (CAS 1007883-28-4)
- 3-Bromo-2-ethoxybenzaldehyde (CAS 1009091-82-0)
- 1-(2-Bromo-4-methylphenyl)urea (CAS 1016706-21-0)
- 4-Bromo-2-hydroxy-5-methylacetophenone, 97% (CAS 1020253-81-9)
- 2-Bromo-4-methylbenzohydrazide (CAS 1022059-55-7)
- 2-Bromo-3-methylbenzohydrazide (CAS 1023584-30-6)
- 5-Bromo-2-(cyclopropylmethyl)pyrimidin-4-ol (CAS 1044767-92-1)
Recommended Standards
- 4-Bromo-3-methylbenzohydrazide (CAS 148672-43-9)
- 3-(2-Bromophenyl)oxetan-3-ol (CAS 1501972-96-8)
- 7-Bromo-3,4-dihydro-2H-1,5-benzodioxepine (CAS 147644-11-9)
- Methyl 2-(3-bromophenyl)acetate (CAS 150529-73-0)
- (2-Bromo-4-fluoro-5-methylphenyl)methanol (CAS 1379331-92-6)
- Azaclorzine HCl (CAS 49780-10-1)
- 1-methoxy-3-phenylpropan-2-one (CAS 29417-89-8)
- (S)-1-(2,6-dichlorophenyl)propan-1-amine hcl (CAS 1391577-48-2)
- 5-(Pyridin-2-yl)thiophene-2-sulfonamide (CAS 190659-63-3)
- 2-Amino-5-methoxyphenol Hydrochloride (CAS 39547-15-4)
- (2S,3S)-1-benzhydryl-2-methylazetidin-3-amine (CAS 164906-71-2)
- 2'-Oxo-1',2',5,7-tetrahydrospiro[cyclopenta[b]pyridine-6,3'-pyrrolo[2,3-b]pyridine]-3-carboxylic acid (CAS 1486481-91-7)
- 3-[2,4-Di(tert-butyl)phenoxy]piperidinehydrochloride (CAS 1220032-75-6)
- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
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