3-(difluoromethyl)-1-methyl-1H-pyrazole-4-sulfonyl chloride CAS 1855907-24-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1855907-24-2 |
| Molecular Formula | C5H9ClF2N2O2S |
| Molecular Weight | 234.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(difluoromethyl)-1-methyl-1H-pyrazole-4-sulfonyl chloride (CAS 1855907-24-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H9ClF2N2O2S. Molecular weight: 234.65 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H9ClF2N2O2S |
| Molecular Weight | 234.65 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related difluoromethyl Standards
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- 4-(Difluoromethyl)-2-((methylthio)methyl)pyrimidine-5-carboxylic acid (CAS 1341653-96-0)
- 2-(4-(Difluoromethyl)-2-oxoquinolin-1(2H)-yl)acetonitrile (CAS 1708208-59-6)
- 2-[3-(difluoromethyl)-5-methyl-4-nitro-1h-pyrazol-1-yl]acetic acid (CAS 925607-46-1)
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- 2-(Difluoromethyl)-3-methoxy-5-nitropyridine-6-methanol (CAS 1805068-48-7)
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Recommended Standards
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- 4-(4-Methylphenyl)-2-thioxo-1,2,3,4-tetrahydro-5H-indeno[1,2-d]pyrimidin-5-one (CAS 60477-76-1)
- 1,2-Di(styryl)benzene (CAS 1160-91-4)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
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