2-Bromo-3,4,5-trimethoxybenzoic acid CAS 23346-82-9
| CAS No. | 23346-82-9 |
| Molecular Formula | C10H11BrO5 |
| Molecular Weight | 291.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 291.10 g/mol gives 2-Bromo-3,4,5-trimethoxybenzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Bromo-3,4,5-trimethoxybenzoic acid (CAS 23346-82-9), molecular formula C10H11BrO5 and molecular weight 291.10 g/mol, is a CATO reference standard with documented purity and traceability.
2-Bromo-3,4,5-trimethoxybenzoic acid (C10H11BrO5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), 2-Bromo-3,4,5-trimethoxybenzoic acid 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 | C10H11BrO5 |
| Molecular Weight | 291.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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 |
| 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.) | 1963 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 3-bromo-2,5,6-trimethoxybenzoic acid (CAS 101460-22-4)
- 6-Bromo-9H-pyrido[3,4-b]indole-3-carboxylic acid (CAS 1532983-53-1)
- Ethyl 4-bromo-1-ethyl-5-nitro-1H-pyrrole-2-carboxylate (CAS 1669415-56-8)
- Methyl 7-bromo-3-cyanoquinoline-2-carboxylate (CAS 1956367-52-4)
- 1-(5-Bromo-3-nitro-1H-1,2,4-triazol-1-yl)-3,3-dimethylbutan-2-one (CAS 667901-23-7)
- 2-(4-Bromo-3,5-dimethyl-1H-pyrazol-1-yl)succinic acid (CAS 90561-06-1)
- 5-Bromo-1-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one (CAS 96245-87-3)
- 5-Bromo-2',3'-dideoxyuridine (CAS 28616-93-5)
Recommended Standards
- 5-(2-Bromoethyl) 3-ethyl 3H-pyrazole-3,5-dicarboxylate (CAS 88202-93-1)
- 5-(5-Bromofuran-2-yl)-3-phenyl-1,2,4-oxadiazole (CAS 690971-22-3)
- 1-(4-Bromophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 864872-05-9)
- 5,7-Difluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline (CAS 2052166-01-3)
- 2,2-Dimethyl-n-(1,3,4-thiadiazol-2-yl)azetidine-1-carboxamide (CAS 1376282-05-1)
- N,N-Diisopropyl-2H-tetrazol-5-amine (CAS 6280-36-0)
- 2-Methyl-6-(thiophen-2-yl)pyrimidin-4-amine (CAS 875215-40-0)
- 84030-21-7 N,N,N-Tributyl-1-butanaminium Sulfide Tetrabutylammonium Mercaptide Tetrabutylammonium hydrogen sulfide (CAS 84030-21-7)
- 4-Methyl-2H-benzo[b][1,4]thiazin-3(4H)-one (CAS 37142-87-3)
- 2-[(4-chlorophenyl)methyl]-2-methylpyrrolidine hydrochloride (CAS 1909327-53-2)
- 3-(4-Hydroxyphenyl)-1-propanol (CAS 10210-17-0)
- N-(2-hydrazinyl-1-(4-hydroxyphthalazin-1-yl)-2-oxoethyl)benzamide (CAS 49660-30-2)
- H-Asp-Asp-Asp-OH (CAS 107208-63-9)
- Semaglutide Impurity 1(OtBu-Ste-D-γGlu(OtBu)-AEEA-AEEA-OH) (CAS CATO-C4X-22261)
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