5-(Bis(ethylthio)methyl)-1H-pyrazole CAS 321998-90-7
| CAS No. | 321998-90-7 |
| Molecular Formula | C8H14N2S2 |
| Molecular Weight | 202.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 5-(Bis(ethylthio)methyl)-1H-pyrazole (CAS 321998-90-7), a certified reference material (molecular formula C8H14N2S2, MW 202.34 g/mol) for analytical method development and quality control.
5-(Bis(ethylthio)methyl)-1H-pyrazole (C8H14N2S2) contains a nitrile group, sulfur-containing functionality. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 5-(Bis(ethylthio)methyl)-1H-pyrazole 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 | C8H14N2S2 |
| Molecular Weight | 202.34 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Bis Standards
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- 4-(Ethylthio)-5-mercapto-2-methylpyridazin-3(2H)-one (CAS 72039-20-4)
- 3-(Ethylthio)-5-hydrazinyl-1H-pyrazole-4-carboxylic acid (CAS 117736-60-4)
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Recommended Standards
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- 3-Isopropyl-4-methyl-1-pentyn-3-ol (CAS 5333-87-9)
- 3-Amino-5-ethyl-1H-pyrazole-4-carboxamide (CAS 50436-86-7)
- 2-((5-(5-Bromo-2-hydroxyphenyl)-4-(2,4-dimethylphenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-cyanophenyl)acetamide (CAS 875006-54-5)
- 2-Chloro-5-(chloromethyl)-3-(difluoromethyl)isonicotinonitrile (CAS 1806930-13-1)
- 6-Methylpyridine-3-sulfonyl chloride hydrochloride (CAS 1210868-11-3)
- 3-(1-Naphthyl)-3-[(2,2,2-trifluoroacetyl)amino]propanoic acid (CAS 439094-84-5)
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