4,5-Dibromothiophene-2-carboxylic Acid CAS 6324-10-3
| CAS No. | 6324-10-3 |
| Molecular Formula | C5H2Br2O2S |
| Molecular Weight | 285.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4,5-Dibromothiophene-2-carboxylic Acid.
CATO supplies 4,5-Dibromothiophene-2-carboxylic Acid (CAS 6324-10-3), a certified reference material (molecular formula C5H2Br2O2S, MW 285.94 g/mol) for analytical method development and quality control.
4,5-Dibromothiophene-2-carboxylic Acid (C5H2Br2O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H2Br2O2S |
| Molecular Weight | 285.94 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 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Dibromothiophene Standards
- 4,5-Dibromothiophene-3-carboxylic acid (CAS 101079-66-7)
- 2,5-Dibromothiophene-3-carboxylic acid (CAS 7311-70-8)
- 3,4-Dibromothiophene-2-carboxylic acid (CAS 7311-66-2)
- 3,5-Dibromothiophene-2-carboxylic acid (CAS 7311-68-4)
- 4,5-Dibromothiophene-2-carboxamide (CAS 171851-27-7)
- 2,5-Dibromothiophene-3-carboxamide (CAS 857979-62-5)
- 4,5-Dibromothiophene-3-carboxamide (CAS 98136-28-8)
- 2-Acetyl-4,5-dibromothiophene (CAS 7209-12-3)
Recommended Standards
- 5-Bromo-1,3-dichloro-2-(methoxymethoxy)benzene (CAS 1300743-46-7)
- 3-Bromo-2,4-dichloro-1,5-dimethoxybenzene (CAS 1803562-26-6)
- 2-Bromo-1,4-dichloro-3-(methoxymethoxy)benzene (CAS 1850231-33-2)
- 2,2'-[(1-Methyl-1,3-propanediyl)bis(oxy)]bis[4-methyl-1,3,2-dioxaborinane] (CAS 2665-13-6)
- 2-Iodo-N,3-dimethylbenzamide (CAS 887234-45-9)
- 24648-13-3 DBTTF Dibenzotetrathiafulvalene [2,2 inverted exclamation mark ]Bi[benzo[1,3]dithiolylidene] (CAS 24648-13-3)
- 1-(3-Amino-5-bromopyridin-2-yl)ethanone hydrochloride (CAS 1986337-27-2)
- 4-(1-Methyl-1h-imidazol-2-yl)-1,2,5-thiadiazol-3-amine (CAS 1482957-36-7)
- N-Ethyl-N-methylpiperidin-4-amine (CAS 1072412-09-9)
- (1S,4s)-4-amino-1-(hydroxymethyl)cyclohexan-1-ol (CAS 1398938-34-5)
- 5-Bromo-1H-1,2,4-triazole-3-carboxylic acid (CAS 674287-63-9)
- 2,6-Dibromo-4-fluorocinnamic acid (CAS 1807412-85-6)
- 6,7-Dimethoxynaphth-1-yl Trifluoromethanesulfonate (CAS 168643-48-9)
- Insulin aspart (CAS 116094-23-6)
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