3-(5-Bromothiophen-2-yl)propanal CAS 157270-19-4
| CAS No. | 157270-19-4 |
| Molecular Formula | C7H7BrOS |
| Molecular Weight | 219.10 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.
3-(5-Bromothiophen-2-yl)propanal (CAS 157270-19-4), molecular formula C7H7BrOS and molecular weight 219.10 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H7BrOS, 3-(5-Bromothiophen-2-yl)propanal contains sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 219.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H7BrOS |
| Molecular Weight | 219.10 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromothiophen Standards
- 2-(5-Bromothiophen-2-yl)acetimidamide (CAS 1016835-71-4)
- 1-(4-Bromothiophen-2-yl)propan-2-one (CAS 1071110-19-4)
- 3-(4-Bromothiophen-2-yl)propanal (CAS 1247380-57-9)
- 1-(3-Bromothiophen-2-yl)propan-2-one (CAS 1247452-12-5)
- 1-(5-Bromothiophen-2-yl)cyclopropan-1-ol (CAS 1249043-81-9)
- 3-(4-Bromothiophen-2-yl)prop-2-en-1-ol (CAS 1563672-39-8)
- 3-(5-Bromothiophen-2-yl)prop-2-en-1-ol (CAS 1831938-05-6)
- 1-(4-Bromothiophen-2-yl)propan-1-one (CAS 36155-78-9)
Recommended Standards
- 4-Bromo-5-methyl-2-(methylthio)pyrimidine (CAS 1823532-08-6)
- 2-Bromo-4,5-dimethylthiophene-3-carbaldehyde (CAS 1539712-74-7)
- 4-Bromo-6-methyl-2-(methylthio)pyrimidine (CAS 1510016-13-3)
- (R)-1-Bromo-3-(methylsulfinyl)benzene (CAS 188539-86-8)
- [2-(4-methylmorpholin-2-yl)pyrimidin-5-yl]methanol (CAS 1512018-75-5)
- (1S,2S,8AR)-1,2,3,5,8,8a-hexahydroindolizine-1,2-diol (CAS 501939-11-3)
- Apigenin-d5 (CAS 263711-74-6)
- N-methyl-2-(2-(naphthalen-1-yl)acetyl)hydrazine-1-carbothioamide (CAS 51291-27-1)
- 1H-Benzimidazole-4-acetonitrile, 7-fluoro-1-methyl- (CAS 1936380-93-6)
- Parecoxib sodium Impurity 9 (CAS 1373038-56-2)
- 5-Chloro-2-((3,4-difluorobenzyl)oxy)benzaldehyde (CAS 1443351-77-6)
- Benzyl 5-acetyl-2-oxopiperidine-1-carboxylate (CAS 1958100-85-0)
- 2-Amino-N-((1-benzylpiperidin-2-yl)methyl)-N-cyclopropylacetamide (CAS 1353957-73-9)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
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