3-Ethyl-1-(ethylthio)cyclobutane-1-carboxylic acid CAS 1481564-21-9
| CAS No. | 1481564-21-9 |
| Molecular Formula | C9H16O2S |
| Molecular Weight | 188.29 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.
3-Ethyl-1-(ethylthio)cyclobutane-1-carboxylic acid (CAS 1481564-21-9), molecular formula C9H16O2S and molecular weight 188.29 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Ethyl-1-(ethylthio)cyclobutane-1-carboxylic acid (C9H16O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 188.29 g/mol, it falls into the medium-molecular-weight range.
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 | C9H16O2S |
| Molecular Weight | 188.29 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) | 2.0 |
| CAS Registry Year (est.) | 1992 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 4-(ethylthio)benzoic acid (CAS 13205-49-7)
- 1-(Ethylthio)-3,3-dimethylcyclobutane-1-carboxylic acid (CAS 1481555-35-4)
- 4-(Ethylthio)cyclohexane-1-carboxylic acid (CAS 1547588-59-9)
- 5-(Ethylthio)-1-isopropyl-1H-1,2,4-triazol-3(2H)-one (CAS 55375-82-1)
- 5-(Ethylthio)-1-methyl-4-nitro-1H-imidazole (CAS 87695-77-0)
- 4-(Ethylthio)tetrahydro-2h-pyran-4-carboxylic acid (CAS 1247341-86-1)
- Ethyl 4-(ethylthio)-3-oxobutanoate (CAS 25907-36-2)
- 2-(Ethylthio)-6-methylpyrimidine-4-thiol (CAS 6967-58-4)
Recommended Standards
- 3-Methyl-1-(propylthio)cyclobutane-1-carboxylic acid (CAS 1486310-43-3)
- 4-methyl-6-(methylsulfanyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 1408075-41-1)
- 5-(4-pyridyl)-1<I>H</I>-1,2,4-triazole-3-thiol (CAS 14910-06-6)
- 1-(4-Methylpiperazin-1-yl)-2-(methylthio)ethan-1-one (CAS 1342241-36-4)
- (R)-1-(4-(trifluoromethoxy)phenyl)butan-1-amine (CAS 1141017-03-9)
- Methyl 3-(benzo[d][1,3]dioxol-5-yl)oxirane-2-carboxylate (CAS 39829-16-8)
- Phthaloyl-Leu-OH (CAS 2419-38-7)
- (4-{6-Methylimidazo[1,2-a]pyridin-2-yl}phenyl)boronic acid (CAS 2377608-29-0)
- 3-Morpholinoisobenzofuran-1(3H)-one (CAS 4195-21-5)
- 2,5-Dibromo-4-(trifluoromethyl)pyridine (CAS 1099597-94-0)
- 2-(5-(2-Methylcyclopropyl)furan-2-yl)acetaldehyde (CAS 1342143-35-4)
- Methotrexate Impurity 75 (CAS CATO-C4X-115475)
- 7-Amino-6-phenylpyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 320417-39-8)
- Semaglutide Impurity 18 (CAS 1671100-14-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com