4-[2-(1H-Pyrazol-4-yl)ethynyl]benzaldehyde CAS 575452-25-4
| CAS No. | 575452-25-4 |
| Molecular Formula | C12H8N2O |
| Molecular Weight | 196.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-[2-(1H-Pyrazol-4-yl)ethynyl]benzaldehyde is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-[2-(1H-Pyrazol-4-yl)ethynyl]benzaldehyde (CAS 575452-25-4), molecular formula C12H8N2O and molecular weight 196.20 g/mol, is a CATO reference standard with documented purity and traceability.
4-[2-(1H-Pyrazol-4-yl)ethynyl]benzaldehyde (C12H8N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H8N2O |
| Molecular Weight | 196.20 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 2 |
Related H Standards
- 2-(1H-Pyrazol-4-yl)quinoxaline (CAS 439106-90-8)
- 4-(2-(1h-Pyrazol-1-yl)ethoxy)piperidine (CAS 1247360-16-2)
- 4-(1H-Pyrazol-5-yl)quinoline (CAS 1174415-07-6)
- 1H-Pyrazol-1-yl morpholine-4-carboxylate (CAS 548767-62-0)
- 2-(1H-Pyrazol-4-yl)thiazole-4-carboxylic acid (CAS 1023594-72-0)
- 2-(1H-pyrazol-1-yl)thiazole-4-carboxylic acid (CAS 1437312-14-5)
- 2-(1H-Pyrazol-1-yl)ethanesulfonyl chloride (CAS 1196146-43-6)
- 1-(1H-Pyrazol-1-yl)octan-1-one (CAS 541545-95-3)
Recommended Standards
- 4,5-Dimethylcyclohexa-1,4-diene-1,2-dicarboxylic acid (CAS 91061-82-4)
- 4-Allyl-3,5-dioxocyclohexanecarboxylic acid (CAS 52935-95-2)
- 4,5-Dimethoxy-2-methylbenzoic Acid (CAS 20736-28-1)
- 4-Ethoxy-3-hydroxyphenylacetic Acid (CAS 26691-28-1)
- (2S,3R)-3-Amino-2-methyl-3-phenylpropanoic acid hydrochloride (CAS 16933-84-9)
- 3-Methyl-N-((tetrahydrofuran-2-yl)methyl)cyclopentan-1-amine (CAS 1344050-53-8)
- 2-(Aminomethyl)-N-phenylaniline (CAS 20877-84-3)
- Tert-butyl ((1-pivaloylpiperidin-4-yl)methyl)carbamate (CAS 1286275-67-9)
- 6-Methylisoquinoline-8-carboxylic acid (CAS 1824080-62-7)
- 1-Bromo-3-chloro-2-fluoropropane (CAS 32753-90-5)
- 5-[(2-Methoxyethyl)thio]-1,3,4-thiadiazol-2-amine (CAS 82381-77-9)
- 4-(Benzyloxy)-1H-pyrazole (CAS 1785066-32-1)
- 3-(Morpholin-4-yl)-4H-chromen-4-one (CAS 40302-80-5)
- [3-31]-Semaglutide D (CAS C152H230N42O47)
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