Methyl 4-bromo-2,5-dimethylthiophene-3-carboxylate CAS 859489-84-2
| CAS No. | 859489-84-2 |
| Molecular Formula | C8H9BrO2S |
| Molecular Weight | 249.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyl 4-bromo-2,5-dimethylthiophene-3-carboxylate is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Methyl 4-bromo-2,5-dimethylthiophene-3-carboxylate (CAS 859489-84-2), a certified reference material (molecular formula C8H9BrO2S, MW 249.12 g/mol) for analytical method development and quality control.
Methyl 4-bromo-2,5-dimethylthiophene-3-carboxylate (C8H9BrO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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 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).
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 Methyl 4-bromo-2,5-dimethylthiophene-3-carboxylate 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 | C8H9BrO2S |
| Molecular Weight | 249.12 g/mol |
| 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.) | 1987 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Ethyl 2-bromo-2-(thiophen-2-yl)acetate (CAS 104688-01-9)
- Methyl 4-bromo-5-ethylthiophene-2-carboxylate (CAS 1047645-89-5)
- Ethyl 4-bromo-5-methylthiophene-2-carboxylate (CAS 1256286-44-8)
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Recommended Standards
- Ethyl 5-bromo-3-methylthiophene-2-carboxylate (CAS 909010-86-2)
- Methyl 4-bromo-3,5-dimethylthiophene-2-carboxylate (CAS 928044-46-6)
- Ethyl 5-(bromomethyl)thiophene-3-carboxylate (CAS 206860-16-4)
- Promurit (CAS 5836-73-7)
- N-(3,4-Difluorophenyl)-3-methyl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-amine (CAS 899757-82-5)
- 2-Chloro-4-(5-chlorovaleryl)pyridine (CAS 898785-09-6)
- (2E)-3-(3-Bromophenyl)-1-(2,4-dimethylphenyl)prop-2-en-1-one (CAS 1354941-13-1)
- Methyl 2-(2-Hydroxyphenyl)acetate (CAS 22446-37-3)
- 2-Chloromethyl-3-methoxy-6-(trifluoromethyl)pyridine (CAS 1227606-47-4)
- Tris(3-chlorophenyl)(octadecyl)silane (CAS 18817-52-2)
- N-[(Cyclohexylcarbamoyl)amino]-3-(pyridin-3-yl)-4,5-dihydro-1,2-oxazole-5-carboxamide (CAS 478064-65-2)
- 4-Thioureidobenzenesulfonic acid (CAS 116432-96-3)
- 2-amino-2-methylpentanoic acid (CAS 3275-37-4)
- Angiotensin II Antipeptide (CAS 121379-63-3)
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