5-Methylpyridine-3-thiol CAS 762272-49-1
| CAS No. | 762272-49-1 |
| Molecular Formula | C6H7NS |
| Molecular Weight | 125.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Methylpyridine-3-thiol.
5-Methylpyridine-3-thiol (CAS 762272-49-1), molecular formula C6H7NS and molecular weight 125.19 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Methylpyridine-3-thiol (C6H7NS) contains a nitrile group, sulfur-containing functionality, an aromatic ring system. 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 125.19 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), 5-Methylpyridine-3-thiol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 1986 |
| 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
- 5,6-Dihydro-4H-cyclopenta[d][1,3]thiazole (CAS 5661-10-9)
- 6-Methylpyridine-3-thiol (CAS 31181-59-6)
- 6-Methylpyridine-4(3H)-thione (CAS 832129-77-8)
- 4-Methyl-2-vinylthiazole (CAS 45534-10-9)
- (E)-3-(3-((dimethylamino)methyl)-4-methoxyphenyl)acrylic acid (CAS 251111-38-3)
- 3-(4-Bromophenyl)-1-(p-tolyl)-1H-pyrazole-4-carbaldehyde (CAS 618098-44-5)
- 4,4'-(Propane-2,2-diyl)dicyclohexanone (CAS 7418-16-8)
- 6-(4-Chlorophenyl)-3,5-dimethylimidazo[2,1-b]thiazole-2-carboxylic acid (CAS 1181348-09-3)
- 2-Amino-N-(m-tolyl)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxamide (CAS 489434-80-2)
- 3-Bromo-6-chloro-2H-chromen-2-one (CAS 1220702-34-0)
- (2R,3R)-2-Amino-3-methylpentanedioic acid (CAS 97550-61-3)
- (S)-7-Fluoro-1,2,3,4-tetrahydronaphthalen-1-amine hydrochloride (CAS 1466449-95-5)
- 2,5-Diiodobenzonitrile (CAS 79887-24-4)
- Semaglutide impurity 107 (CAS CATO-C4X-2226107)
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