3-(3,5-Dimethyl-1h-pyrazol-1-yl)propanethioamide CAS 956958-75-1
| CAS No. | 956958-75-1 |
| Molecular Formula | C8H13N3S |
| Molecular Weight | 183.27 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.
3-(3,5-Dimethyl-1h-pyrazol-1-yl)propanethioamide (CAS 956958-75-1) is a high-purity analytical reference standard with the molecular formula C8H13N3S and a molecular weight of 183.27 g/mol.
The molecular framework of 3-(3,5-Dimethyl-1h-pyrazol-1-yl)propanethioamide (C8H13N3S) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C8H13N3S |
| Molecular Weight | 183.27 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.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Dimethyl Standards
- 1,5-Dimethyl-N-(thietan-3-yl)-1H-pyrazol-3-amine (CAS 1865024-41-4)
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Recommended Standards
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- Varenicline Impurity C03 (CAS 230615-52-8)
- 3-Amino-4-chloro-N-(2,4-dimethoxyphenyl)benzamide (CAS 1018545-18-0)
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