2,6-Dibromo-4-hydroxybenzoic acid CAS 1935194-66-3
| CAS No. | 1935194-66-3 |
| Molecular Formula | C7H4Br2O3 |
| Molecular Weight | 295.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,6-Dibromo-4-hydroxybenzoic acid (CAS 1935194-66-3), molecular formula C7H4Br2O3 and molecular weight 295.91 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, 2,6-Dibromo-4-hydroxybenzoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 295.91 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 2,6-Dibromo-4-hydroxybenzoic acid 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 | C7H4Br2O3 |
| Molecular Weight | 295.91 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 2,5-Dibromo-4-hydroxybenzoic acid (CAS 101421-19-6)
- 3,5-Dibromo-2,4-dihydroxybenzaldehyde (CAS 116096-91-4)
- 2,3-Dibromo-4,5-dihydroxybenzaldehyde (CAS 14045-41-1)
- 2,4-Dibromo-5-hydroxybenzoic Acid (CAS 14348-39-1)
- 2,4-Dibromo-6-hydroxybenzoic acid (CAS 1666-27-9)
- 2,4-Dibromo-3-hydroxybenzoic Acid (CAS 91659-00-6)
- 2,5-dibromo-3,4-dihydroxybenzaldehyde (CAS 70625-28-4)
- 3,5-Dibromo-4-Hydroxybenzoic Acid (CAS 3337-62-0)
Recommended Standards
- 3,5-Dibromosalicylic Acid (CAS 3147-55-5)
- Methyl 3,5-dibromopyrazine-2-carboxylate (CAS 1035818-91-7)
- 627-31-6 1,3-Diiodopropane Propane, 1,3-diiodo- 4-01-00-00228 (Beilstein Handbook Reference) AI3-52340 BRN 1731117 EINECS 210-993-4 NSC 35647 Trimethylene diiodide (CAS 627-31-6)
- 3-Amino-4,6-dibromopicolinic acid (CAS 1073182-93-0)
- 1-Ethyl-4-iodo-3-(trifluoromethyl)-1h-pyrazole (CAS 1443279-13-7)
- 5-Amino1-bromo-3-methyl-2-nitrobenzene (CAS 885523-78-4)
- N'-(Furan-2-ylmethylene)-2-(m-tolyloxy)acetohydrazide (CAS 93758-56-6)
- (E)-3-(4-Hydroxystyryl)phenol (CAS 63877-76-9)
- 1-(4-Chlorobenzyl)cyclohexan-1-amine (CAS 756425-20-4)
- (1R,2S)-2-(4-ethylbenzoyl)cyclopentane-1-carboxylic acid (CAS 733740-12-0)
- 3-(bromomethyl)-2-nitro-pyridine (CAS 15936-06-8)
- Vinyl iodide (CAS 593-66-8)
- 3-(4-Chloro-1h-pyrazol-1-yl)-2-(methylamino)propanoic acid (CAS 1247475-19-9)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
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