2,4-Dibromothiophene-3-carbaldehyde CAS 1257070-67-9
| CAS No. | 1257070-67-9 |
| Molecular Formula | C5H2Br2OS |
| Molecular Weight | 269.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2,4-Dibromothiophene-3-carbaldehyde (CAS 1257070-67-9), a certified reference material (molecular formula C5H2Br2OS, MW 269.94 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, 2,4-Dibromothiophene-3-carbaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 269.94 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C5H2Br2OS |
| Molecular Weight | 269.94 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Dibromothiophene Standards
- 3,4-Dibromothiophene-2-carbaldehyde (CAS 32896-02-9)
- 4,5-Dibromothiophene-2-carbaldehyde (CAS 38071-22-6)
- 4,5-Dibromothiophene-3-carbaldehyde (CAS 61200-56-4)
- 2,4-Dibromothiophene-3-carbonitrile (CAS 1256651-68-9)
- 4,5-Dibromothiophene-3-carbonitrile (CAS 1823961-00-7)
- 2,5-Dibromothiophene-3-carbonitrile (CAS 18792-01-3)
- 4,5-Dibromothiophene-2-carbonitrile (CAS 54521-49-2)
- 2,5-Dibromothiophene 1,1-Dioxide (CAS 89088-95-9)
Recommended Standards
- 2,5-Dibromo-3-thiophenecarbaldehyde (CAS 1193-69-7)
- 2,2'-oxybis(4,4,6-trimethyl-1,3,2-dioxaborinane) (CAS 14697-50-8)
- 2,2'-Oxybis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 10221-56-4)
- (2-Bromo-6-cyclopentylpyridin-4-yl)boronic acid (CAS 2225180-33-4)
- 2-Methyl-1-(m-tolylsulfonyl)piperazine hydrochloride (CAS 1353951-47-9)
- (2R,3S,4S,5S)-1,6-Dibromohexane-2,3,4,5-tetraol (CAS 32452-75-8)
- 4-(Difluoromethyl)-2-propyl-2H-pyrazolo[3,4-b]pyridin-6(7H)-one (CAS 1018165-74-6)
- 4,5-Dichloro-2-methyl-1H-indole (CAS 479422-01-0)
- 1-(1-(4-Chlorophenyl)-1-phenylbut-3-yn-1-yl)-1H-imidazole (CAS 88557-56-6)
- (1S,3R,5R)-rel-spiro[bicyclo[3.2.1]octane-8,2'-[1,3]dioxolane]-3-ol (CAS 91109-38-5)
- 2-(Allyloxy)-1-bromo-3-fluorobenzene (CAS 1010422-27-1)
- 2-Amino-5-(dimethylamino)phenol (CAS 15103-39-6)
- 1-(2,6-Difluorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 1152542-41-0)
- Allo-Thr5-Tirzepatide (CAS CATO-CPTD788934)
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