23486-70-6 5-ethynyl-1H-pyrazole NE17420 CAS 23486-70-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 23486-70-6 |
| Molecular Formula | C5H8N2 |
| Molecular Weight | 96.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
23486-70-6 5-ethynyl-1H-pyrazole NE17420 (CAS 23486-70-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H8N2. Molecular weight: 96.13 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H8N2 |
| Molecular Weight | 96.13 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
Related ethynyl Standards
- 3-Ethynyl-3-methyloxetane (CAS 1290541-27-3)
- (2R)-2-Ethynyl-pyrrolidine (CAS 128959-89-7)
- 3-Ethynyl-1-methylazetidine (CAS 2019193-32-7)
- 3-ethynyl-3-methyl-azetidine (CAS 2168144-68-9)
- 2-Ethynyl-1,3-dioxolane (CAS 18938-38-0)
- 1-ethyl-1-ethynyl-cyclopropane (CAS 2101782-55-0)
- 1-ethynyl-3-fluorocyclobutane (CAS 1698054-37-3)
- 1-Ethynyl-1-(fluoromethyl)cyclopropane (CAS 2228783-15-9)
Recommended Standards
- 20843-07-6 Furan, 3,4-dimethyl- 3,4-Dimethylfuran (CAS 20843-07-6)
- 3-Methyl-1-Penten-4-yn-3-ol (CAS 3230-69-1)
- Vildagliptin Impurity 2 (CAS 5626-49-3)
- 3-(3,3-Difluoroazetidin-1-yl)isonicotinaldehyde (CAS 1774895-44-1)
- Cobalt sulfate heptahydrate (CAS 10026-24-1)
- 2-[(2-fluorophenyl)sulfanyl]acetic acid (CAS 705-02-2)
- 2-Ethynylpyridin-4-amine hydrochloride (CAS 1357353-33-3)
- methyl 3-formyl-1H-pyrrolo[2,3-b]pyridine-4-carboxylate (CAS 1190314-06-7)
- Benzo[4,5]imidazo[1,2-a]pyrimidine (CAS 245-55-6)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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