5-Hydroxy-3-(methylthio)-1H-pyrazole-4-carbonitrile CAS 59541-47-8
| CAS No. | 59541-47-8 |
| Molecular Formula | C5H5N3OS |
| Molecular Weight | 155.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H5N3OS, 5-Hydroxy-3-(methylthio)-1H-pyrazole-4-carbonitrile contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 155.18 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).
5-Hydroxy-3-(methylthio)-1H-pyrazole-4-carbonitrile (CAS 59541-47-8) is a high-purity analytical reference standard with the molecular formula C5H5N3OS and a molecular weight of 155.18 g/mol.
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-3-(methylthio)-1H-pyrazole-4-carbonitrile 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 | C5H5N3OS |
| Molecular Weight | 155.18 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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- C-Peptide 1 (rat) (CAS 41475-27-8)
Why CATO?
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