1-Ethyl-4-(4-isothiocyanato-pyrazol-1-ylmethyl)-5-methyl-1h-pyrazole CAS 1004643-58-6
| CAS No. | 1004643-58-6 |
| Molecular Formula | C11H13N5S |
| Molecular Weight | 247.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-Ethyl-4-(4-isothiocyanato-pyrazol-1-ylmethyl)-5-methyl-1h-pyrazole (C11H13N5S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 247.32 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
1-Ethyl-4-(4-isothiocyanato-pyrazol-1-ylmethyl)-5-methyl-1h-pyrazole (CAS 1004643-58-6) is a high-purity analytical reference standard with the molecular formula C11H13N5S and a molecular weight of 247.32 g/mol.
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 | C11H13N5S |
| Molecular Weight | 247.32 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
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