2-(Methylthio)pyridin-3-ol CAS 32637-37-9
| CAS No. | 32637-37-9 |
| Molecular Formula | C6H7NOS |
| Molecular Weight | 141.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(Methylthio)pyridin-3-ol (CAS 32637-37-9), molecular formula C6H7NOS and molecular weight 141.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H7NOS, 2-(Methylthio)pyridin-3-ol contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 141.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C6H7NOS |
| Molecular Weight | 141.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1966 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylthio Standards
- 4-(Methylthio)pyridin-2(1H)-one (CAS 1018443-25-8)
- 3-(Methylthio)pyridin-4-ol (CAS 1243388-89-7)
- 2-(Methylthio)pyridin-4-ol (CAS 1243388-92-2)
- 3-(Methylthio)pyrazin-2-amine (CAS 87444-50-6)
- 4-(Methylthio)pyrimidin-5-amine (CAS 59447-73-3)
- 5-(Methylthio)-1H-pyrrole-2-carbaldehyde (CAS 90724-50-8)
- 5-(Methylthio)pyridazin-3-amine (CAS 57036-82-5)
- 5-(Methylthio)pyrimidin-2-amine (CAS 7367-94-4)
Recommended Standards
- 2-(Methylsulfinyl)pyridine (CAS 21948-75-4)
- 2,4-Dimethylthiazole-5-carboxaldehyde (CAS 95453-54-6)
- 2-(2-Methylthiazol-4-yl)acetaldehyde (CAS 956822-09-6)
- 2,5-Dimethylthiazole-4-carbaldehyde (CAS 213258-56-1)
- Acetyltaxol, 2',7-Bis-(Rg) (CAS 81924-74-5)
- (1R,3S)-3-(Ethoxycarbonyl)cyclohexanecarboxylic acid (CAS 227783-03-1)
- Sodium 4-hydroxy-2,2-dimethylbutanoate (CAS 107975-81-5)
- 5-[({4-[(4-Fluorobenzyl)oxy]phenyl}methylene)amino]-2-methylbenzenecarbonitrile (CAS 297150-11-9)
- N-(4-Piperidylmethyl)pyridin-4-amine (CAS 110105-91-4)
- 3-Hydroxy-1-isopropyl-1H-pyrazole-5-carboxylic acid (CAS 1823773-61-0)
- 3-cyano-2,4-bis(2,2,2-trifluoroethoxy)benzenesulphonyl chloride (CAS 680212-96-8)
- 4-Bromo-6-fluoroquinolin-2-amine (CAS 866757-15-5)
- 2-Propenoic acid, polymer with butyl 2-propenoate, 2-methyl-2-propenamide and 2-propenenitrile (CAS 25916-39-6)
- Peptide-GMF (CAS CATO-CPTD788469)
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