2-(ethylsulfanyl)acetaldehyde CAS 33672-79-6
| CAS No. | 33672-79-6 |
| Molecular Formula | C4H8OS |
| Molecular Weight | 104.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(ethylsulfanyl)acetaldehyde (CAS 33672-79-6), molecular formula C4H8OS and molecular weight 104.17 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, 2-(ethylsulfanyl)acetaldehyde is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 104.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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.
Physical & Chemical Properties
| Molecular Formula | C4H8OS |
| Molecular Weight | 104.17 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) | 1.0 |
| CAS Registry Year (est.) | 1966 |
| Sulfur Atoms | 1 |
Related ethylsulfanyl Standards
- 2-(Ethylsulfanyl)acetonitrile (CAS 53250-09-2)
- 4-(Ethylsulfanyl)but-1-yne (CAS 10574-98-8)
- 2-(Ethylsulfanyl)propanenitrile (CAS 36705-63-2)
- 3-(ethylsulfanyl)propanal 5454-45-5 NE27875 (CAS 5454-45-5)
- 1-(ethylsulfanyl)propan-2-amine (CAS 331826-46-1)
- 3-(ethylsulfanyl)propan-1-amine (CAS 53056-86-3)
- 2-(ethylsulfanyl)ethane-1-thiol (CAS 26750-44-7)
- 2-(ethylsulfanyl)-3-methylnaphthalene-1,4-dione 2610-95-9 AR-1C9259 (CAS 2610-95-9)
Recommended Standards
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- 2-Amino-6-(hydroxymethyl)-4-(4-methoxyphenyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile (CAS 194282-56-9)
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- 3-(Pyridin-3-yl)-4,5-dihydroisoxazole-5-carbonitrile (CAS 264606-40-8)
- Des-Ala21-Tirzepatide (CAS CATO-CPTD788952)
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