1-(4-Iodothiophen-2-yl)ethanone CAS 33148-75-3
| CAS No. | 33148-75-3 |
| Molecular Formula | C6H5IOS |
| Molecular Weight | 252.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-(4-Iodothiophen-2-yl)ethanone (CAS 33148-75-3), a certified reference material (molecular formula C6H5IOS, MW 252.07 g/mol) for analytical method development and quality control.
1-(4-Iodothiophen-2-yl)ethanone (C6H5IOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H5IOS |
| Molecular Weight | 252.07 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.) | 1966 |
| Halogen Content | I-containing |
| Sulfur Atoms | 1 |
Related Iodothiophen Standards
- 1-(2-Iodothiophen-3-yl)ethan-1-one (CAS 1956371-36-0)
- 1-(3-Iodothiophen-2-yl)ethan-1-one (CAS 89380-60-9)
- 2-(5-Iodothiophen-2-yl)ethanol (CAS 918440-92-3)
- (5-Iodothiophen-2-yl)methanol (CAS 13781-27-6)
- (5-Iodothiophen-3-yl)methanol (CAS 185395-90-8)
- N-(4-Iodothiophen-2-yl)acetamide (CAS 1935147-55-9)
- N-(3-Iodothiophen-2-yl)acetamide (CAS 1935504-24-7)
- 3-(5-Iodothiophen-2-yl)-3-oxopropanenitrile (CAS 887588-22-9)
Recommended Standards
- 1-(4-Bromophenyl)-1H-1,2,3-triazole-4-carbaldehyde (CAS 916151-04-7)
- 1-(5-Bromopyrazin-2-yl)pyridin-2(1H)-one (CAS 959238-26-7)
- 1-(5-Bromopyrimidin-2-yl)-1H-pyrrole-2-carbaldehyde (CAS 383147-57-7)
- (E)-8-Bromoquinoxaline-5-carbaldehyde oxime (CAS 2101944-51-6)
- 3-(Methylsulfanyl)propanimidamide hydrochloride (CAS 88570-29-0)
- (E)-5-Decen-1-ol (CAS 56578-18-8)
- 1,4,5,8-Tetraamino-2,6-bis(methylthio)anthracene-9,10-dione (CAS 88605-73-6)
- 3-(2,5-dimethylphenyl)-2-mercapto-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 731827-11-5)
- 2-(1-Mercaptoethyl)phenol (CAS 1039963-29-5)
- Methyl 3-(1,1-Dioxido-2-isothiazolidinyl)benzoate (CAS 279678-01-2)
- 3-Benzyl-7-methylhexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione (CAS 67744-73-4)
- 4',4'''-(Diazene-1,2-diyl)bis(([1,1'-biphenyl]-4-carboxylicacid)) (CAS 148-85-6)
- Calcium chloride hydrate (CAS 13477-29-7)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
Why CATO?
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