3-(3,5-Dimethylphenyl)-2-thiomethylpropiophenone CAS 898780-41-1
| CAS No. | 898780-41-1 |
| Molecular Formula | C18H20OS |
| Molecular Weight | 284.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(3,5-Dimethylphenyl)-2-thiomethylpropiophenone (CAS 898780-41-1), molecular formula C18H20OS and molecular weight 284.42 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H20OS, 3-(3,5-Dimethylphenyl)-2-thiomethylpropiophenone contains a steroid core, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 284.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H20OS |
| Molecular Weight | 284.42 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
Related Dimethylphenyl Standards
- 1-(2,4-Dimethylphenyl)-3-(4-(methylthio)phenyl)propan-1-one (CAS 898781-24-3)
- 1-(2,5-Dimethylphenyl)-3-(4-(methylthio)phenyl)propan-1-one (CAS 898781-27-6)
- 1-(2,6-Dimethylphenyl)-3-(4-(methylthio)phenyl)propan-1-one (CAS 898781-30-1)
- 3-(2,3-Dimethylphenyl)-1-(4-(methylthio)phenyl)propan-1-one (CAS 898769-32-9)
- 3-(2,3-Dimethylphenyl)-2-thiomethylpropiophenone (CAS 898769-29-4)
- 3-(2,4-Dimethylphenyl)-4-thiomethylpropiophenone (CAS 898793-82-3)
- 3-(2,5-Dimethylphenyl)-1-(2-(methylthio)phenyl)propan-1-one (CAS 898794-98-4)
- 3-(2,6-Dimethylphenyl)-1-(2-(methylthio)phenyl)propan-1-one (CAS 898754-58-0)
Recommended Standards
- 3-(3,4-Dimethylphenyl)-4-thiomethylpropiophenone (CAS 898779-11-8)
- 3,4-Dimethyl-3-(2-thiomethylphenyl)propiophenone (CAS 898780-01-3)
- 3-(3,4-Dimethylphenyl)-2-thiomethylpropiophenone (CAS 898779-08-3)
- 3,5-Dimethyl-3-(2-thiomethylphenyl)propiophenone (CAS 898780-04-6)
- 1-(2-(2-Hydroxyethoxy)ethyl)-2-imino-10-methyl-3-tosyl-1H-dipyrido[1,2-a:2',3'-d]pyrimidin-5(2H)-one (CAS 607384-09-8)
- tert-Butyl (3-fluoro-2-formylphenethyl)carbamate (CAS 2757409-66-6)
- 2-(4-Hydroxyphenyl)quinoline-8-carboxamide (CAS 655222-51-8)
- Methyl 3-amino-3-(3-chlorophenyl)propanoate hydrochloride (CAS 1269634-09-4)
- N1-[2-(2,4-difluorophenoxy)-3-pyridyl]-2,3,3-trichloroacrylamide (CAS 243644-40-8)
- Ropinirole (CAS 91374-21-9)
- 4-Fluoroisoquinolin-8-amine (CAS 1841081-81-9)
- 3-Decyl-1-methyl-6,7-dihydrothiazolo[2,3-f]purine-2,4(1H,3H)-dione (CAS 330818-21-8)
- Dehydroepiandrosterone-D5 (DHEA-D5) (2,2,3,4,4-D5) (CAS 97453-25-3)
- Semaglutide impurity 204 (CAS CATO-C4X-2226204)
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