1-(Thiophen-2-ylmethyl)-1h-pyrazol-5-amine CAS 4394-26-7
| CAS No. | 4394-26-7 |
| Molecular Formula | C8H9N3S |
| Molecular Weight | 179.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-(Thiophen-2-ylmethyl)-1h-pyrazol-5-amine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
1-(Thiophen-2-ylmethyl)-1h-pyrazol-5-amine (CAS 4394-26-7), molecular formula C8H9N3S and molecular weight 179.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, 1-(Thiophen-2-ylmethyl)-1h-pyrazol-5-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 179.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C8H9N3S |
| Molecular Weight | 179.24 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.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Thiophen Standards
- 3-Methyl-4-(thiophen-2-yl)-1H-pyrazol-5-amine (CAS 1024595-27-4)
- 1-methyl-3-(thiophen-3-yl)-1H-pyrazol-5-amine (CAS 1152708-82-1)
- 1-(thiophen-3-ylmethyl)-1H-pyrazol-3-amine (CAS 1183247-90-6)
- 1-(Thiophen-2-ylmethyl)-1h-imidazol-2-amine (CAS 1183916-94-0)
- 4-Methyl-3-(thiophen-2-yl)-1h-pyrazol-5-amine (CAS 130599-39-2)
- 4-Methyl-3-(thiophen-3-yl)-1h-pyrazol-5-amine (CAS 1312443-95-0)
- (5-(Thiophen-2-yl)furan-2-yl)methanamine (CAS 1505089-09-7)
- (3-(Thiophen-3-yl)-1H-pyrazol-4-yl)methanamine (CAS 1518226-53-3)
Recommended Standards
- 1-(Methylsulfonyl)piperidin-3-ol (CAS 444606-08-0)
- 1,3-dimethyl-1H-pyrazole-4-sulfonamide (CAS 88398-53-2)
- 1-(Methoxymethyl)cyclobutane-1-sulfonamide (CAS 2138149-00-3)
- 1,5-dimethyl-1H-pyrazole-4-sulfonamide (CAS 88398-55-4)
- (4-Chlorophenyl)(3-phenylpyrrolidin-1-yl)methanone (CAS 403998-96-9)
- 2-Bromomethyl-3-methoxypyridine (CAS 889360-84-3)
- 2-Amino-4-fluoro-5-(trifluoromethyl)benzoic acid (CAS 1805097-26-0)
- N-(4-Butoxybenzyl)-1H-indazol-5-amine (CAS 864423-62-1)
- 6-Amino-N-(furan-2-ylmethyl)-2-thioxo-1,2-dihydropyrimidine-5-carboxamide (CAS 898652-00-1)
- Ethyl 2-((3R,4R)-2-ethoxy-4-hydroxytetrahydrofuran-3-yl)acetate (CAS 501921-26-2)
- N-(4-(2-((4-Methoxybenzyl)amino)-2-oxoethyl)thiazol-2-yl)furan-2-carboxamide (CAS 923178-65-8)
- 5-Bromo-N,N-diethylpicolinamide (CAS 673485-54-6)
- SB-366791, 98% (CAS 472981-92-3)
- Semaglutide impurity 331 (CAS CATO-C4X-2226231)
Why CATO?
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