3-Bromo-5-methylbenzene-1,2-diol CAS 117654-19-0
| CAS No. | 117654-19-0 |
| Molecular Formula | C7H7BrO2 |
| Molecular Weight | 203.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 3-Bromo-5-methylbenzene-1,2-diol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 203.03 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).
3-Bromo-5-methylbenzene-1,2-diol (CAS 117654-19-0), molecular formula C7H7BrO2 and molecular weight 203.03 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-Bromo-5-methylbenzene-1,2-diol 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 | C7H7BrO2 |
| Molecular Weight | 203.03 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.) | 1990 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 3-Bromo-5-hydroxybenzyl Alcohol (CAS 1020336-51-9)
- 2-Bromo-1-(4-methylfuran-2-yl)ethanone (CAS 133674-82-5)
- 2-Bromo-3-methoxyphenol (CAS 135999-16-5)
- 4-Bromo-2-methylbenzene-1,3-diol (CAS 139553-46-1)
- 2-Bromo-1-(5-methylfuran-2-yl)ethanone (CAS 1634-53-3)
- 5-Bromo-2-(hydroxymethyl)phenol (CAS 170434-11-4)
- 2-Bromo-4-methoxyphenol (CAS 17332-11-5)
- 3-Bromo-4-methoxyphenol (CAS 17332-12-6)
Recommended Standards
- 1-(5-(Bromomethyl)furan-2-yl)ethanone (CAS 114430-54-5)
- 4,6-Dichloro-2,3-dihydro-1H-pyrrolo[3,4-c]pyridin-1-one (CAS 1201676-03-0)
- 2-Amino-5,7-dichloro-[1,2,4]triazolo[1,5-a]pyridine (CAS 1124383-04-5)
- 4,6-Dichloro-N-(prop-2-yn-1-yl)-1,3,5-triazin-2-amine (CAS 1206849-35-5)
- 3,5-Difluorothioanisole (CAS 54378-77-7)
- (+)-Limonene 2,3,3,5,5,-d5 (Major) (CAS 2514937-17-6)
- 3-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl]aminedihydrochloride (CAS 1185295-27-5)
- Pimavanserin impurity 53 (CAS 194538-07-3)
- 2-(3,4-Dihydroquinolin-1(2H)-yl)-N-(2-nitrophenyl)acetamide (CAS 882079-84-7)
- 4,5-Dichloro-2-(2-hydroxyethyl)pyridazin-3(2H)-one (CAS 69696-56-6)
- 2-Propylthieno[3,2-d]pyrimidin-4(3H)-one (CAS 150113-52-3)
- Ethyl 2-amino-2-cyanoacetate oxalate (CAS 150464-08-7)
- C11 TopFluor<SUP>®</SUP> Ceramide (CAS 1246355-58-7)
- D-Pro31-Tirzepatide (CAS CATO-CPTD788905)
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