4-Methoxy-6-methyl-2-(methylthio)pyrimidine, 97% CAS 55749-33-2
| CAS No. | 55749-33-2 |
| Molecular Formula | C7H10N2OS |
| Molecular Weight | 170.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methoxy-6-methyl-2-(methylthio)pyrimidine, 97% (CAS 55749-33-2), molecular formula C7H10N2OS and molecular weight 170.23 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system, 4-Methoxy-6-methyl-2-(methylthio)pyrimidine, 97% is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 170.23 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 | C7H10N2OS |
| Molecular Weight | 170.23 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.) | 1972 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- 2-Methoxy-5-(methylthio)phenol (CAS 1243410-16-3)
- 4-Methoxy-3-(methylthio)phenol (CAS 127087-14-3)
- 3-methoxy-5-(methylsulfanyl)pyridin-2-amine (CAS 1638201-69-0)
- 1-Methoxy-4-(methylsulfinyl)benzene (CAS 3517-99-5)
- 2-Methoxy-4-(methylthio)phenol (CAS 77156-05-9)
- 5-Methoxy-3-(methylthio)pyridin-2-amine (CAS 2794196-64-6)
- 5-methoxy-1H,2H,3H-pyrrolo[2,3-b]pyridin-2-one (CAS 1190322-28-1)
- 4-methoxy-2,3-dihydro-1H-1,3-benzodiazol-2-one (CAS 69053-51-6)
Recommended Standards
- 4,8-Dimethyl-2-phosphabicyclo[3.3.1]nonane, min. 90%, CYTOP? 170 (CAS 328952-85-8)
- 4-methyl-6-oxo-2-sulfanyl-1H-pyridine-3-carbonitrile (CAS 93272-85-6)
- 4,6-Dimethyl-2-(methylthio)pyrimidin-5-ol (CAS 89808-12-8)
- 5-(2-Hydroxyethyl)-4-methylthiophene-3-carbaldehyde (CAS 334687-35-3)
- 1-Ethyl-3-(trifluoromethyl)-1H-pyrazole-4-carbaldehyde (CAS 1443279-72-8)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (4-(p-tolyl)thiazol-5-yl)boronate (CAS 2223050-48-2)
- 5-(4-Chlorophenoxymethyl)-4-(4-chlorophenyl)-4h-1,2,4-triazole-3-thiol (CAS 76111-24-5)
- 3-(5-Methyloxazol-2-yl)propan-1-amine (CAS 684221-33-8)
- 2-(3-Bromophenyl)pentan-3-amine (CAS 1481856-80-7)
- (3S)-3-Amino-2,3-dihydro-1H-indene-5-carboxylic acid methyl ester hydrochloride (CAS 1246509-66-9)
- 6-(3,4-Dichlorophenyl)-2-hydroxy-4-[2-(trifluoromethyl)phenyl]pyridine-3-carbonitrile (CAS 478261-50-6)
- 4-(4-Fluorophenyl)-6-(4-methylpiperazin-1-yl)-2-phenylpyrimidine-5-carbonitrile (CAS 477853-94-4)
- 2-(Dodecyloxy)ethyl hydrogen sulfate (CAS 48073-44-5)
- Peptide 74 (H-8545.0500) (CAS 132116-39-3)
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