4-((4-Chlorophenyl)thio)-1,3-dimethyl-1H-pyrazol-5-ol CAS 72619-83-1
| CAS No. | 72619-83-1 |
| Molecular Formula | C11H11ClN2OS |
| Molecular Weight | 254.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-((4-Chlorophenyl)thio)-1,3-dimethyl-1H-pyrazol-5-ol (CAS 72619-83-1), a certified reference material (molecular formula C11H11ClN2OS, MW 254.74 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, 4-((4-Chlorophenyl)thio)-1,3-dimethyl-1H-pyrazol-5-ol is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 254.74 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-((4-Chlorophenyl)thio)-1,3-dimethyl-1H-pyrazol-5-ol 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 | C11H11ClN2OS |
| Molecular Weight | 254.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- {1-[(2-Chlorophenyl)methyl]-2-sulfanyl-1H-imidazol-5-yl}methanol (CAS 1082388-01-9)
- 5-(((4-Chlorophenyl)thio)methyl)-2-methyl-1,2-dihydro-3H-pyrazol-3-one (CAS 318234-25-2)
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Recommended Standards
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com