3-(Methylthio)pyridazine CAS 21948-71-0
| CAS No. | 21948-71-0 |
| Molecular Formula | C5H6N2S |
| Molecular Weight | 126.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 126.18 g/mol gives 3-(Methylthio)pyridazine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-(Methylthio)pyridazine (CAS 21948-71-0), a certified reference material (molecular formula C5H6N2S, MW 126.18 g/mol) for analytical method development and quality control.
Owing to a nitrile group, sulfur-containing functionality, 3-(Methylthio)pyridazine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 126.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-(Methylthio)pyridazine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H6N2S |
| Molecular Weight | 126.18 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 |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methylthio Standards
- 3-(Methylthio)-1,2,4-triazine (CAS 28735-21-9)
- 4-(Methylthio)pyridine (CAS 22581-72-2)
- (Methylthio)acetyl chloride (CAS 35928-65-5)
- 4-Methyl-2-(methylthio)furan (CAS 84735-62-6)
- 2-Methyl-5-(methylthio)furan (CAS 13678-59-6)
- 2-Methyl-3-(methylthio)furan (CAS 63012-97-5)
- 1-Methyl-4-(methylthio)-1H-pyrazole (CAS 1309388-78-0)
- 3-Methyl-5-(methylthio)-1H-1,2,4-triazole (CAS 34985-98-3)
Recommended Standards
- 2-Methylthiopyrimidine (CAS 823-09-6)
- 3-Amino-4-mercaptopyridine (CAS 89002-13-1)
- 2-Methylpyrimidine-4-thiol (CAS 33643-86-6)
- 3-Aminopyridine-2(1H)-thione (CAS 38240-21-0)
- N-(4,5-Dibromo-2-([(4-methylphenyl)sulfonyl]amino)phenyl)-4-methylbenzenesulfonamide (CAS 88617-67-8)
- Ethyl 2-(2-oxo-2H-indol-3-yl)hydrazinecarboxylate (CAS 21231-44-7)
- 5-Methyl-2,2-diphenyl-2H-imidazol-4-amine (CAS 1956325-71-5)
- 3-(1,3-Dioxo-1,3-dihydro-isoindol-2-ylmethyl)-4,5-dimethoxy-benzoic acid (CAS 565210-81-3)
- 5-(2,4-Dimethylphenyl)-1,3,4-thiadiazol-2-amine (CAS 183882-25-9)
- Relebactam Impurity 77 (CAS CATO-C4X-214477)
- (2-Cyano-6-isopropylpyridin-4-yl)boronic acid (CAS 2225175-84-6)
- 2,4-Dihydroxy-6-methoxyquinoline (CAS 14300-45-9)
- (2,5-Dimethoxyphenyl)thiourea (CAS 67617-98-5)
- Semaglutide impurity 214 (CAS CATO-C4X-2226214)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com