6-Methylpyridine-3-thiol CAS 31181-59-6
| CAS No. | 31181-59-6 |
| Molecular Formula | C6H7NS |
| Molecular Weight | 125.19 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.
6-Methylpyridine-3-thiol (CAS 31181-59-6) is a high-purity analytical reference standard with the molecular formula C6H7NS and a molecular weight of 125.19 g/mol.
Based on its molecular formula C6H7NS, 6-Methylpyridine-3-thiol contains a nitrile group, sulfur-containing functionality, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 125.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C6H7NS |
| Molecular Weight | 125.19 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.) | 1965 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylpyridine Standards
- 2-Methylpyridine-4(1H)-thione (CAS 100367-70-2)
- 5-Methylpyridine-2-thiol (CAS 18368-58-6)
- 4-Methylpyridine-2-thiol (CAS 18368-65-5)
- 3-Methylpyridine-2-thiol (CAS 18368-66-6)
- 1-Methylpyridine-4(1H)-thione (CAS 6887-59-8)
- 2-Methylpyridine-3-thiol (CAS 762272-47-9)
- 2-Methylpyridine-4(3H)-thione (CAS 832129-79-0)
- 4-Methylpyridine-3-thiol (CAS 889944-78-9)
Recommended Standards
- 5-Methylpyridine-3-thiol (CAS 762272-49-1)
- 6-Methylpyridine-4(3H)-thione (CAS 832129-77-8)
- 5,6-Dihydro-4H-cyclopenta[d][1,3]thiazole (CAS 5661-10-9)
- Montelukast Impurity 23 (CAS 866923-64-0)
- 5-Bromo-7-methyl-1H-indole (CAS 15936-81-9)
- Lysergic Acid Methylpropylamide (CAS 40158-98-3)
- [2-(piperazin-1-yl)phenyl]methanamine (CAS 190017-89-1)
- 1-(5-Methyl-1H-indol-1-yl)ethan-1-one (CAS 78827-85-7)
- Zinc oxalate dihydrate (CAS 55906-21-3)
- 4-Methoxy-3-(((5-methyl-1H-1,2,4-triazol-3-yl)thio)methyl)benzaldehyde (CAS 907972-78-5)
- N,N'-Bis(3,5-dichlorophenyl)propanediamide (CAS 75317-42-9)
- 2-(3-Ethoxy-2,2-dimethylcyclobutyl)acetic acid (CAS 1882643-15-3)
- (2-Phenoxypyridin-3-yl)methanol (CAS 681460-30-0)
- (9-D-Asp) Semaglutide X Sodium salt (CAS CATO-CPTD788617)
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