2-(Isobutylthio)-1-(o-tolyl)ethan-1-one CAS 1157307-13-5
| CAS No. | 1157307-13-5 |
| Molecular Formula | C13H18OS |
| Molecular Weight | 222.35 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.
2-(Isobutylthio)-1-(o-tolyl)ethan-1-one (CAS 1157307-13-5), molecular formula C13H18OS and molecular weight 222.35 g/mol, is a CATO reference standard with documented purity and traceability.
2-(Isobutylthio)-1-(o-tolyl)ethan-1-one (C13H18OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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).
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 | C13H18OS |
| Molecular Weight | 222.35 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Sulfur Atoms | 1 |
Related Isobutylthio Standards
- 2-(Isobutylthio)-1-phenylpropan-1-one (CAS 1154281-87-4)
- 2-(Isobutylthio)-1-(p-tolyl)ethan-1-one (CAS 1155555-34-2)
- 1-(Isobutylthio)-3-phenylpropan-2-one (CAS 1157306-91-6)
- 2-((Isobutylthio)methyl)pyrimidine-4-carboxylic acid (CAS 1483594-78-0)
- 5-Ethyl-2-(isobutylthio)-6-methylpyrimidin-4(1H)-one (CAS 552309-81-6)
- 1-(Isobutylthio)-3,3-dimethylcyclobutane-1-carboxylic acid (CAS 1492609-22-9)
- 1-(Isobutylthio)-3-isopropylcyclobutane-1-carboxylic acid (CAS 1496054-07-9)
- 5-(Isobutylthio)spiro[2.3]hexane-5-carboxylic acid (CAS 1482303-91-2)
Recommended Standards
- 2-(Propylthio)-1-(p-tolyl)propan-1-one (CAS 1157364-53-8)
- 2-(Butylthio)-1-(o-tolyl)ethan-1-one (CAS 1157306-32-5)
- 1-(4-Ethylphenyl)-2-(propylthio)ethan-1-one (CAS 1157365-36-0)
- 1-(Butylthio)-3-phenylpropan-2-one (CAS 1157305-70-8)
- 3-(2-Chloropyridin-4-yl)-4-methoxybenzonitrile (CAS 1417795-34-6)
- 4-Methoxy-2-pyridineacetonitrile (CAS 40808-75-1)
- N-(4-chloro-3-nitrophenyl)-2-(4-methylpiperazin-1-yl)acetamide (CAS 329778-32-7)
- diphenyl diselenide (CAS 1666-13-3)
- Nicorandil Impurity 33 (CAS CATO-C4X-190733)
- 6-Fluoro-5-iodo-1H-indole (CAS 908600-77-1)
- Norepinephrine Impurity 40 (CAS 3805-00-3)
- Methyl 6-chloro-2-methyl-5-nitronicotinate (CAS 1706432-29-2)
- (2-Iodophenyl)(4-methylpyridin-2-yl)methanone (CAS 1187163-85-4)
- Peptide Impurity 11 X TFA Salt (CAS CATO-CPTD788811)
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