3-(5-Chlorothiophen-2-yl)-1H-pyrazole CAS 166196-61-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 166196-61-8 |
| Molecular Formula | C7H5ClN2S |
| Molecular Weight | 184.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(5-Chlorothiophen-2-yl)-1H-pyrazole (CAS 166196-61-8) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H5ClN2S. Molecular weight: 184.65 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H5ClN2S |
| Molecular Weight | 184.65 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chlorothiophen Standards
- 3-(3-Chlorothiophen-2-yl)-1H-pyrazole (CAS 166196-59-4)
- 4-(5-Chlorothiophen-2-yl)-1h-pyrazole (CAS 76153-69-0)
- 3-(5-Chlorothiophen-2-yl)-3-oxopropanenitrile (CAS 71683-01-7)
- 3-(4-Chlorothiophen-2-yl)propiolic acid (CAS 1403566-51-7)
- 3-(5-Chlorothiophen-2-yl)propiolic acid (CAS 874513-01-6)
- 5-(5-Chlorothiophen-2-yl)-2H-tetrazole (CAS 58884-89-2)
- 4-(4-Chlorothiophen-2-yl)but-3-en-2-one (CAS 1563844-27-8)
- 3-(5-Chlorothiophen-2-yl)-2-methylprop-2-enal (CAS 1563958-97-3)
Recommended Standards
- 7-Chlorobenzo[d]thiazol-5-amine (CAS 196205-26-2)
- 5-Chloro-4-methylbenzo[c][1,2,5]thiadiazole (CAS 15777-28-3)
- 4-(Chloromethyl)benzo[c][1,2,5]thiadiazole (CAS 19706-16-2)
- 1,5-Diphenyl-4-(pyrrolidine-1-carbonyl)-1H-pyrazole (CAS 477711-85-6)
- 9H-Carbazole-1-carboxylic acid (CAS 6311-19-9)
- Tert-butyl 3-((benzyloxycarbonyl)methyl)-4-hydroxypyrrolidine-1-carboxylate (CAS 143657-00-5)
- Thieno[3,2-d]isothiazole-5-carboxylic acid (CAS 74598-12-2)
- 5,6,7,8-Tetrahydro-[1,6]naphthyridine-3-carboxylic acid ethyl ester dihydrochloride (CAS 1965308-82-0)
- 2-Bromo-N-(4-bromophenyl)propanamide (CAS 42276-46-0)
- Anti-TF Antigen Peptide P30-1 trifluoroacetate salt (CAS 573664-50-3)
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 13829788188 / jacky.chen@cato-chem.com