3-(Thiophen-2-yl)-1H-pyrazol-4-amine CAS 158077-95-3
| CAS No. | 158077-95-3 |
| Molecular Formula | C7H7N3S |
| Molecular Weight | 165.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-(Thiophen-2-yl)-1H-pyrazol-4-amine 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.
3-(Thiophen-2-yl)-1H-pyrazol-4-amine (CAS 158077-95-3), molecular formula C7H7N3S and molecular weight 165.22 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-(Thiophen-2-yl)-1H-pyrazol-4-amine (C7H7N3S) is characterized by a nitrile group, sulfur-containing functionality, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H7N3S |
| Molecular Weight | 165.22 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Thiophen Standards
- 4-(Thiophen-3-yl)-1h-imidazol-2-amine (CAS 1489940-64-8)
- 4-Methyl-3-(thiophen-2-yl)-4H-1,2,4-triazole (CAS 1541119-53-2)
- 4-(Thiophen-3-yl)-1H-pyrazol-5-amine (CAS 162286-51-3)
- 4-(Thiophen-2-yl)-1H-imidazol-2-amine (CAS 76507-19-2)
- 4-(Thiophen-2-yl)-1h-pyrazol-5-amine (CAS 91447-40-4)
- 3-Methyl-5-(thiophen-2-yl)isoxazole (CAS 104516-55-4)
- 5-Methyl-3-(thiophen-3-yl)isoxazole (CAS 147137-35-7)
- N-(1-(thiophen-3-yl)ethyl)prop-2-yn-1-amine (CAS 1247595-84-1)
Recommended Standards
- 4-methylsulfanylpyrrolo[2,1-f][1,2,4]triazine (CAS 1596350-40-1)
- 3-Amino-5-(3-thienyl)pyrazole (CAS 149246-86-6)
- Albendazole Impurity 15 (CAS 1805694-08-9)
- 6-Amino-4-methylbenzo[d][1,2,3]thiadiazole (CAS 1446017-03-3)
- (Chloromethyl)diphenylphosphine oxide (CAS 1806-49-1)
- 3-(Trichloromethoxy)benzonitrile (CAS 1404195-02-3)
- 3-((4-Bromothiophen-2-yl)methoxy)azetidine (CAS 1309315-52-3)
- Monosulfuron-Ester (CAS 175076-90-1)
- Acalabrutinib Impurity 27 (CAS CATO-C4X-305527)
- 2,3-Dihydro-[1,4]dioxino[2,3-b]pyridin-7-amine (CAS 1261365-47-2)
- tert-Butyl 4-(2-oxoethyl)azepane-1-carboxylate (CAS 1780196-03-3)
- Methyl 3-amino-4-chlorobenzoate hydrochloride (CAS 161796-15-2)
- methyl 6-amino-1H-benzimidazole-2-carboxylate;hydrochloride (CAS 2044704-79-0)
- Semaglutide Impurity 6 (CAS 62-57-7)
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