2-Ethyl-5-(methylthio)pyridine CAS 149281-49-2
| CAS No. | 149281-49-2 |
| Molecular Formula | C8H11NS |
| Molecular Weight | 153.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Ethyl-5-(methylthio)pyridine (C8H11NS) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 153.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Ethyl-5-(methylthio)pyridine (CAS 149281-49-2), molecular formula C8H11NS and molecular weight 153.24 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C8H11NS |
| Molecular Weight | 153.24 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 4-(2-(Methylthio)ethyl)pyridine (CAS 124528-30-9)
- (2-(Methylthio)phenyl)methanamine (CAS 56004-83-2)
- 4-(Methylthio)benzylamine (CAS 83171-39-5)
- 2-(4-(Methylthio)-1H-pyrazol-1-yl)acetonitrile (CAS 1469286-88-1)
- 5-(Methylthio)nicotinaldehyde (CAS 1784970-38-2)
- 5-(Methylthio)picolinaldehyde (CAS 1784970-43-9)
- 2-(Methylthio)nicotinaldehyde (CAS 62658-92-8)
- 6-(Methylthio)picolinaldehyde (CAS 217657-76-6)
Recommended Standards
- 2-Amino-4,5,6,7-tetrahydrobenzothiophene (CAS 14770-79-7)
- 2-methyl-4H,5H,6H-cyclopenta[b]thiophen-4-amine (CAS 1513420-35-3)
- Cyclopropyl-thiophen-2-ylmethyl-amine (CAS 14471-18-2)
- (R)-2-(Thiophen-2-yl)pyrrolidine (CAS 154777-22-7)
- 3-Piperidin-3-yl-phenylamine (CAS 916421-42-6)
- 2-Bromo-4,5-dihydro-thieno[2,3-c]pyran-7-one (CAS 947149-96-4)
- 2-methyl-3-(4-propylphenyl)propanal (CAS 902274-65-1)
- Methyl (2R)-1-benzylazetidine-2-carboxylate (CAS 205443-23-8)
- 2-(2-Chloropyridin-4-yl)-4-(2,6-difluorophenyl)thiazole (CAS 1431728-71-0)
- 1,3-Dichloro-5-ethynylbenzene (CAS 99254-90-7)
- 2-(2-Methoxyphenyl)-6-methylquinoline-4-carboxylic acid (CAS 667435-77-0)
- (2R,4R)-2-Amino-4-benzylpentanedioic acid (CAS 402821-16-3)
- 1-(1,3-Dimethyl-1H-pyrazol-4-yl)-N-((1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl)methyl)methanamine hydrochloride (CAS 1856100-68-9)
- [D-His1]-Semaglutide (CAS CATO-C4X-2226127)
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