5-Hydroxy-2-(methylthio)pyrimidine CAS 4874-33-3
| CAS No. | 4874-33-3 |
| Molecular Formula | C5H6N2OS |
| Molecular Weight | 142.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-Hydroxy-2-(methylthio)pyrimidine (C5H6N2OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 142.18 g/mol, it falls into the low-molecular-weight range. 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).
CATO supplies 5-Hydroxy-2-(methylthio)pyrimidine (CAS 4874-33-3), a certified reference material (molecular formula C5H6N2OS, MW 142.18 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 5-Hydroxy-2-(methylthio)pyrimidine 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 | C5H6N2OS |
| Molecular Weight | 142.18 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.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
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- 2-Hydroxy-1-(2-thienyl)ethanone (CAS 88511-88-0)
- trans-4-hydroxy-4-methyl-cyclohexanecarbaldehyde (CAS 1214730-43-4)
- 4-Hydroxy-2,2-dimethylcyclohexan-1-one (CAS 123214-39-1)
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Recommended Standards
- 5-formylthiazole-2-carbonitrile (CAS 2090886-23-8)
- 5-Methoxy-2-thiophenecarbaldehyde (CAS 35087-46-8)
- 5-Ethyl-1,3,4-thiadiazole-2-carbaldehyde (CAS 2044797-24-0)
- 5-Methoxypyrimidine-4(3H)-thione (CAS 51793-91-0)
- 2-(3,4-Dihydroquinolin-1(2H)-yl)-2-oxoethyl 2-(methylthio)nicotinate (CAS 475055-51-7)
- Methyl 5-(methoxymethyl)furan-2-carboxylate (CAS 7042-04-8)
- tert-Butyl 3-((2-aminoacetamido)methyl)piperidine-1-carboxylate (CAS 1353971-42-2)
- Ethyl 5-bromo-3-(2-carboxy-vinyl)-1H-indole-2-carboxylate (CAS 885273-61-0)
- 8-Methyl-2-thioxo-1,2-dihydroquinoline-3-carbaldehyde (CAS 916441-12-8)
- 4-Bromo-3,5-diisopropylbenzonitrile (CAS 2143028-71-9)
- Semaglutide impurity 108 (CAS CATO-C4X-2226108)
- L32-1-Mo (CAS CATO-C4X-35403)
- (R)-2-((tert-butoxycarbonyl)amino)dodecanoic acid (CAS 1821791-33-6)
- Tau Peptide (45-73) (Exon 2/Insert 1 Domain) trifluoroacetate salt (CAS 2022956-54-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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