5-Bromo-2-hydroxy-3-methylbenzyl alcohol CAS 77691-33-9
| CAS No. | 77691-33-9 |
| Molecular Formula | C8H9BrO2 |
| Molecular Weight | 217.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 217.06 g/mol gives 5-Bromo-2-hydroxy-3-methylbenzyl alcohol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Bromo-2-hydroxy-3-methylbenzyl alcohol (CAS 77691-33-9), molecular formula C8H9BrO2 and molecular weight 217.06 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Bromo-2-hydroxy-3-methylbenzyl alcohol (C8H9BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 217.06 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Bromo-2-hydroxy-3-methylbenzyl alcohol 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 | C8H9BrO2 |
| Molecular Weight | 217.06 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 2-Bromo-1-(1,3-dimethyl-1H-pyrazol-5-yl)ethan-1-one (CAS 1015936-63-6)
- 6-Bromo-5-ethoxypyridin-3-amine (CAS 1020253-84-2)
- 3-Bromo-5-ethoxyphenol (CAS 1026796-70-2)
- 2-Bromo-6-isopropoxypyrazine (CAS 1027512-85-1)
- 4-Bromo-1-(tetrahydrofuran-3-yl)-1H-pyrazole (CAS 1040377-07-8)
- 4-Bromo-5-methoxy-1,2-benzenediamine (CAS 108447-01-4)
- 4-Bromo-N-ethyl-1h-pyrrole-2-carboxamide (CAS 1153795-60-8)
- 4-Bromo-3-methoxybenzene-1,2-diamine (CAS 1162696-92-5)
Recommended Standards
- 5-Bromo-1-isopropylpyrimidin-2(1h)-one (CAS 889865-37-6)
- 5-Bromo-2-methoxy-3-methylphenol (CAS 244229-56-9)
- 5-Bromo-1-ethyl-4-methyl-1H-imidazole-2-carbaldehyde (CAS 624746-79-8)
- 5-Bromo-2-methoxy-4-methylphenol (CAS 83387-13-7)
- Methyl 2'-formyl[1,1'-biphenyl]-3-carboxylate (CAS 205823-31-0)
- N,N-dimethyl-4-((3-nitrophenyl)diazenyl)aniline (CAS 3837-55-6)
- tert-Butyl (1-(4-bromophenyl)-2,2,2-trifluoroethyl)carbamate (CAS 1129541-06-5)
- 3-Bromo-2-(pyridin-4-yl)-1H-indole (CAS 343350-55-0)
- 1,2,3,4-Tetrahydroisoquinoline-5-sulfonamide (CAS 1153247-92-7)
- tert-Butyl 3-propoxypyrrolidine-1-carboxylate (CAS 1175835-99-0)
- 4-Ethynylcyclohexanol (CAS 141895-72-9)
- 4-((4-Ethyl-3,5-dimethyl-2H-pyrrol-2-ylidene)methyl)phenol (CAS 524746-06-3)
- 0N3C9JY41X 2882-19-1 Ethyl bromophenylacetate Benzeneacetic acid, alpha-bromo-, ethyl ester EINECS 220-735-2 Ethyl alpha-bromophenylacetate UNII-0N3C9JY41X (CAS 2882-19-1)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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