Methyl 3,5-dibromo-2,4-dihydroxybenzoate CAS 885279-78-7
| CAS No. | 885279-78-7 |
| Molecular Formula | C8H6Br2O4 |
| Molecular Weight | 325.94 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.
Methyl 3,5-dibromo-2,4-dihydroxybenzoate (CAS 885279-78-7), molecular formula C8H6Br2O4 and molecular weight 325.94 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 3,5-dibromo-2,4-dihydroxybenzoate (C8H6Br2O4) 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 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 325.94 g/mol, it falls into the moderately-high-molecular-weight range. 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).
As a certified reference material (CRM), Methyl 3,5-dibromo-2,4-dihydroxybenzoate 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 | C8H6Br2O4 |
| Molecular Weight | 325.94 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 |
| 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.) | 1987 |
| Halogen Content | Br-containing |
Related Methyl Standards
- 2-(3,5-Dibromo-4-hydroxyphenoxy)acetic acid (CAS 13012-94-7)
- 2-(2,4-Dibromo-5-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805048-51-4)
- 2-(4,6-Dibromo-5-(difluoromethyl)pyridin-2-yl)acetonitrile (CAS 1805242-94-7)
- 2-(4,5-Dibromo-3-(difluoromethyl)pyridin-2-yl)acetonitrile (CAS 1805243-44-0)
- 2-(2,5-Dibromo-4-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805318-88-0)
- 2-(2,6-Dibromo-4-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805319-01-0)
- 2-(2,3-Dibromo-5-(difluoromethyl)pyridin-4-yl)acetonitrile (CAS 1805969-69-0)
- 2-(4,5-Dibromo-2-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805969-82-7)
Recommended Standards
- 6-Bromo-3-(2-bromoethoxy)-2-nitropyridine (CAS 959992-61-1)
- 7-Bromo-2,4-dichloro-8-fluoro-6-methoxyquinazoline (CAS 2788907-22-0)
- 5,6-Dibromohexahydro-4,7-epoxyisobenzofuran-1,3-dione (CAS 51371-59-6)
- 7-Bromo-4,6-dichloro-8-fluoro-5-methoxyquinazoline (CAS 2823477-69-4)
- tert-Butyl 4,6-dichloro-2-(methylthio)pyrimidine-5-carboxylate (CAS 1192308-10-3)
- 2-Nitroaniline-3,4,5,6-d4 (CAS 204244-80-4)
- 4-(Pyrrolidin-2-yl)benzonitrile (CAS 1203797-92-5)
- Anamorelin Impurity 12 (CAS CATO-C4X-286912)
- 6-Bromo-3-hydroxy-3-methylindolin-2-one (CAS 1190314-65-8)
- Tert-butyl 3-(1-amino-2-ethoxy-2-oxoethyl)azetidine-1-carboxylate (CAS 1359655-36-9)
- 2-tert-Butyl 4-methyl 3,4-dihydroisoquinoline-2,4(1H)-dicarboxylate (CAS 936828-99-8)
- 2-[2-(Methylsulfanyl)-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl]pyridine (CAS 303995-85-9)
- (S)-(1-Isopropylpyrrolidin-2-yl)methanol (CAS 1005337-07-4)
- Peptide YY (13-36) (canine, mouse, porcine, rat) (CAS 86895-09-2)
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