4-[(4-Chlorophenyl)thio]-3,5-dimethyl-1H-pyrazole CAS 301858-86-6
| CAS No. | 301858-86-6 |
| Molecular Formula | C11H11ClN2S |
| Molecular Weight | 238.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-[(4-Chlorophenyl)thio]-3,5-dimethyl-1H-pyrazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-[(4-Chlorophenyl)thio]-3,5-dimethyl-1H-pyrazole (CAS 301858-86-6), a certified reference material (molecular formula C11H11ClN2S, MW 238.74 g/mol) for analytical method development and quality control.
Structurally, 4-[(4-Chlorophenyl)thio]-3,5-dimethyl-1H-pyrazole (C11H11ClN2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 238.74 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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]-3,5-dimethyl-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 | C11H11ClN2S |
| Molecular Weight | 238.74 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- {[2-(2-Chlorophenyl)-4-methyl-1,3-thiazol-5-yl]methyl}amine (CAS 1082119-61-6)
- 5-[(3-chlorophenyl)methyl]-4-methyl-1,3-thiazol-2-amine (CAS 1155998-38-1)
- 1-(2-(3-Chlorophenyl)thiazol-4-yl)-N-methylmethanamine (CAS 864068-99-5)
- 2-(2-(4-Chlorophenyl)thiazol-4-yl)ethan-1-amine (CAS 26858-31-1)
- 2-(4-(4-Chlorophenyl)thiazol-2-yl)ethan-1-amine (CAS 641993-24-0)
- 2-[2-(2-chlorophenyl)-1,3-thiazol-4-yl]ethan-1-amine (CAS 938377-76-5)
- 4-(4-Chlorophenyl)-5-ethyl-1,3-thiazol-2-amine (CAS 313533-99-2)
- 5-[(2-chlorophenyl)methyl]-4-methyl-1,3-thiazol-2-amine (CAS 446858-94-2)
Recommended Standards
- 4-(Chloromethyl)-N-(4-methylphenyl)-1,3-thiazol-2-amine hydrochloride (CAS 33188-18-0)
- 4-Chloro-2-ethyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (CAS 307343-93-7)
- 4-Chloro-2-methyl-5,6,7,8-tetrahydro-benzo[4,5]thieno[2,3-d]pyrimidine (CAS 81765-97-1)
- 3-Chloro-N-[(4-methyl-1,3-thiazol-5-yl)methyl]aniline (CAS 953070-62-7)
- 1-(3,8-Diazabicyclo[3.2.1]Octan-3-yl)ethan-1-one (CAS 1146852-27-8)
- 3-(4-Bromophenyl)-5-(((6-(p-tolyl)pyridazin-3-yl)thio)methyl)-1,2,4-oxadiazole (CAS 1114909-41-9)
- Des-Leu14-Tirzepatide (CAS CATO-CPTD788959)
- 2-Chloro-3-(difluoromethoxy)benzamide (CAS 1805647-97-5)
- H-Asp-βNA (CAS 635-91-6)
- tert-Butyl ((6-formyl-4-oxo-1,4-dihydropyridin-2-yl)methyl)carbamate (CAS 1393574-10-1)
- 2-Amino-8-hydroxyquinoline-3-carboxylic acid (CAS 90771-37-2)
- 4-(1H-Imidazol-4-yl)-2-methoxyaniline (CAS 89250-12-4)
- 317-20-4 7-FLUORO-1H-INDOLE-2,3-DIONE 7-FLUORO-2,3-INDOLINEDIONE 7-FLUOROINDOLE-1H-2,3-DIONE 7-FLUOROINDOLE-2,3-DIONE 7-FLUOROINDOLINE-2,3-DIONE 7-FLUOROISATINE 7-FLUOROMETHYLISATIN 7-Fluoroisatin AS02428 BUTTPARK 24\07-37 OTAVA-BB 1217730 (CAS 317-20-4)
- Vialox Peptide(Pentapeptide-3) (CAS 135679-88-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com