1-(4-(Methylthio)phenyl)ethanone CAS 1778-09-2
| CAS No. | 1778-09-2 |
| Molecular Formula | C9H10OS |
| Molecular Weight | 166.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(4-(Methylthio)phenyl)ethanone (CAS 1778-09-2), molecular formula C9H10OS and molecular weight 166.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system, 1-(4-(Methylthio)phenyl)ethanone is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 166.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 1-(4-(Methylthio)phenyl)ethanone under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H10OS |
| Molecular Weight | 166.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1957 |
| Sulfur Atoms | 1 |
Related Methylthio Standards
- 3-Methyl-5-(methylthio)benzaldehyde (CAS 1289089-92-4)
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- o-(Methylthio)acetophenone (CAS 1441-97-0)
- 1-(3-(Methylthio)phenyl)ethanone (CAS 1441-99-2)
- 2-(Methylthio)-1-phenylethanone (CAS 5398-93-6)
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Recommended Standards
- 2,2-dimethylpropyl methanesulfonate (CAS 16427-42-2)
- 1-((1S,2S)-2-(Thiophen-2-yl)cyclopropyl)ethan-1-one (CAS 1807939-46-3)
- 2-Amino-2-phenylethanethioamide (CAS 16256-21-6)
- 3-(tert-Butyl)isothiazole-4-carbonitrile (CAS 1823963-50-3)
- 5-(2-Phenylquinolin-4-yl)-1H-1,2,4-triazole-3(2H)-thione (CAS 832151-18-5)
- 2-[(3,3,3-trifluoropropyl)sulfanyl]acetic acid (CAS 1160601-71-7)
- N-((1-(sec-Butyl)-1H-pyrazol-5-yl)methyl)-1,4-dimethyl-1H-pyrazol-5-amine hydrochloride (CAS 1856060-13-3)
- 5-(Piperazin-1-yl)picolinonitrile (CAS 1092848-04-8)
- 1,2-Dimethyl-3-iodo-5-nitrobenzene (CAS 1335140-45-8)
- 2-Bromo-4-(3-(trifluoromethyl)phenyl)thiazole (CAS 887625-72-1)
- Manganese(II) formate (CAS 3251-96-5)
- Methyl 1-benzyl-2-((1S)-1-(((benzyloxy)carbonyl)amino)-2-methylpropyl)-5-methyl-1H-imidazole-4-carboxylate (CAS 1881275-60-0)
- 2-(6,7-Dihydrothieno[3,2-c]pyridin-5(4h)-yl)-6-fluorobenzonitrile (CAS 1241255-45-7)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
Why CATO?
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