2-Chloro-4-(methylthio)pyrimidine CAS 49844-93-1
| CAS No. | 49844-93-1 |
| Molecular Formula | C5H5ClN2S |
| Molecular Weight | 160.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 2-Chloro-4-(methylthio)pyrimidine (CAS 49844-93-1), a certified reference material (molecular formula C5H5ClN2S, MW 160.62 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H5ClN2S, 2-Chloro-4-(methylthio)pyrimidine contains a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 160.62 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).
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 | C5H5ClN2S |
| Molecular Weight | 160.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 5-Chloro-3-cyclopropyl-1,2,4-thiadiazole (CAS 122684-54-2)
- 4-Chloro-6-methylpyrimidine-2(1H)-thione (CAS 1240622-76-7)
- 2-Chloro-3-methylthiopyrazine (CAS 1248090-42-7)
- 2-Chloro-5-cyclopropyl-1,3,4-thiadiazole (CAS 1343234-55-8)
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Recommended Standards
- 3-Acetyl-5-chlorothiophene (CAS 58119-67-8)
- 3-Amino-5-chloropyridine-2-thiol (CAS 21427-63-4)
- 2-Amino-5-chloropyridine-4-thiol (CAS 2055759-46-9)
- 3-Amino-6-chloropyridine-2(1H)-thione (CAS 27467-92-1)
- 1'-(4-Propoxyphenyl)-[1,3'-bipyrrolidine]-2',5'-dione (CAS 89143-17-9)
- 1,1-Dimethyl-2,3-dihydrobenzo[d][1,3]azasilin-4(1H)-one (CAS 146617-38-1)
- 5,10,15,20-Tetrakis(4-carboxymethyloxyphenyl)porphyrin (CAS 127812-08-2)
- 3-Methyl-2,5-pyrazinediethanol (CAS 96681-84-4)
- Phenyl (3,4,5-Trifluorophenyl)carbamate (CAS 1481373-28-7)
- 5-(tert-Butyl)-4,5,6,7-tetrahydrobenzo[c]isoxazol-3-amine (CAS 1279208-80-8)
- N,2-Dimethyl-N-(undec-10-en-1-yl)quinolin-4-amine (CAS 88484-70-2)
- (3,4-Difluorophenyl)(phenyl)methanol (CAS 182192-93-4)
- N-((3R,4S)-6-Cyano-3-hydroxy-2,2-dimethylchroman-4-yl)-N-methylethanesulfonamide (CAS 163163-24-4)
- Semaglutide Impurity 139 (CAS CATO-C4X-2226139)
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