4-Amino-2-(methylthio)pyridine CAS 59243-39-9
| CAS No. | 59243-39-9 |
| Molecular Formula | C6H8N2S |
| Molecular Weight | 140.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 140.21 g/mol gives 4-Amino-2-(methylthio)pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Amino-2-(methylthio)pyridine (CAS 59243-39-9), a certified reference material (molecular formula C6H8N2S, MW 140.21 g/mol) for analytical method development and quality control.
Owing to a nitrile group, sulfur-containing functionality, an aromatic ring system, 4-Amino-2-(methylthio)pyridine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 140.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C6H8N2S |
| Molecular Weight | 140.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1973 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Amino Standards
- 2-Amino-5-(methylthio)pyridine (CAS 77618-99-6)
- 2-Amino-5-cyclopropylthiazole (CAS 606092-87-9)
- 2-amino-6-methyl-pyridine-3-thiol (CAS 33761-31-8)
- 2-Amino-8-methyl-8-azabicyclo[3.2.1]octane (CAS 1314981-01-5)
- 4-Amino-1-cyclopropylpiperidine (CAS 62813-02-9)
- 2-Amino-2-propylpentanenitrile (CAS 805181-81-1)
- 3-Amino-8-methyl-8-azabicyclo[3.2.1]octane (CAS 98998-25-5)
- 5-amino-3-methyl-pyrazine-2-carbonitrile (CAS 1374651-65-6)
Recommended Standards
- 4,6-Dimethyl-2-mercaptopyrimidine (CAS 22325-27-5)
- 4-Cyclopropylthiazol-2-amine, 97% (CAS 324579-90-0)
- 4,5-Dimethylpyrimidine-2-thiol (CAS 64942-98-9)
- 4-Methyl-6-methylsulfanylpyrimidine (CAS 62671-89-0)
- 2-Chloro-5-iodo-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1305324-68-8)
- 2-(3-Oxo-2,3,5,6-tetrahydroimidazo[2,1-b]thiazol-2-yl)acetic acid hydrochloride (CAS 1185300-99-5)
- 3-(Trifluoromethyl)tetrahydrofuran-3-amine (CAS 1269152-31-9)
- 1-(2-Methylpropyl)azetidine-3-carboxylic acid (CAS 1127401-97-1)
- tert-butyl 3-hydroxy-3-propyl-azetidine-1-carboxylate (CAS 398489-36-6)
- 4-bromo-1H-pyrrolo[2,3-b]pyridine-3-sulfonyl chloride (CAS 1210227-31-8)
- 1-Methyl-2-(1-methylhydrazinyl)-4,5-dihydro-1H-imidazole (CAS 775271-24-4)
- Ethyl 5-chloro-2-iodobenzoate (CAS 1012882-90-4)
- Methyl 3-((chlorosulfonyl)methyl)benzoate (CAS 174961-63-8)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
Why CATO?
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