4-Ethyl-2-(methylthio)thiazole CAS 83893-89-4
| CAS No. | 83893-89-4 |
| Molecular Formula | C6H9NS2 |
| Molecular Weight | 159.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Ethyl-2-(methylthio)thiazole is closely related to a nitrile group, sulfur-containing functionality in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Ethyl-2-(methylthio)thiazole (CAS 83893-89-4), molecular formula C6H9NS2 and molecular weight 159.27 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Ethyl-2-(methylthio)thiazole (C6H9NS2) is characterized by a nitrile group, sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C6H9NS2 |
| Molecular Weight | 159.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Ethyl Standards
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- 3-(2-(Methylthio)ethyl)piperidine (CAS 1248723-55-8)
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- (5-((Methylthio)methyl)isoxazol-3-yl)methanol (CAS 84654-36-4)
Recommended Standards
- 4-(propan-2-yl)-1,3-thiazole-2-thiol (CAS 33120-79-5)
- 4-ethyl-5-methyl-1,3-thiazole-2-thiol (CAS 59734-71-3)
- 4-(Aminomethyl)-4-methoxyheptane (CAS 326487-90-5)
- 4-(Aminomethyl)-3-ethylhexan-3-ol (CAS 21533-28-8)
- 5,5-Methylenebis(4-benzyl-4H-1,2,4-triazole-3-thiol) (CAS 62575-53-5)
- 3-Phenylazetidin-3-amine (CAS 688305-74-0)
- 1-(3-Bromo-5-nitropyridin-2-yl)piperazine (CAS 1216144-33-0)
- Guanfacine Hydrochloride Impurity 3 (CAS 6575-24-2)
- 4-Chloro-N-(2-(3,5-dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl)-N-ethylbenzenesulfonamide (CAS 1325305-88-1)
- 7-Fluoro-4,4-dimethyl-1,2,3,4-tetrahydroisoquinoline (CAS 1203685-22-6)
- Ethyl 2-(4-chloro-2-(methylthio)pyrimidin-5-yl)-2-methylpropanoate (CAS 1201362-85-7)
- 1-Azabicyclo[3.3.1]nonane-5-carboxylic acid (CAS 119103-11-6)
- 3-Chloro-9H-[1,2,4]triazino[6,5-b]indole (CAS 38119-37-8)
- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
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