3-Ethynyl-1,5-dimethyl-1H-pyrazole CAS 85385-96-2
| CAS No. | 85385-96-2 |
| Molecular Formula | C7H8N2 |
| Molecular Weight | 120.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Ethynyl-1,5-dimethyl-1H-pyrazole (CAS 85385-96-2), a certified reference material (molecular formula C7H8N2, MW 120.15 g/mol) for analytical method development and quality control.
The molecular framework of 3-Ethynyl-1,5-dimethyl-1H-pyrazole (C7H8N2) is characterized by a nitrile group, 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C7H8N2 |
| Molecular Weight | 120.15 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Nitrogen Atoms | 2 |
Related Ethynyl Standards
- 5-Ethynyl-2,3-dimethylfuran (CAS 1057670-06-0)
- 5-Ethynyl-1,2-dimethyl-1H-imidazole (CAS 1201657-10-4)
- 3-Ethynyl-2-cyclohexenone (CAS 124267-26-1)
- 1-Ethyl-2-ethynyl-1h-imidazole (CAS 1339042-77-1)
- 1-Ethyl-5-ethynyl-1h-pyrazole (CAS 1344083-08-4)
- 1-Ethyl-3-ethynyl-1H-pyrazole (CAS 1354706-83-4)
- 1-Ethyl-4-ethynyl-1H-pyrazole (CAS 573982-81-7)
- 3-Ethynyl-1,4-dimethyl-1H-pyrazole (CAS 2105612-53-9)
Recommended Standards
- 3-Methyl-1H-pyrrolo[1,2-a]imidazole (CAS 59027-59-7)
- 3-Cyclopropylpyridazine (CAS 63359-57-9)
- 3-Methyl-6-vinylpyridazine (CAS 848774-92-5)
- 3,5-Dimethyl-1H-pyrrole-2-carbonitrile (CAS 4513-92-2)
- 1-Bromo-4-ethoxy-2,3-dimethylbenzene (CAS 1428234-61-0)
- 2-(Benzyloxy)-4-(trifluoromethyl)benzoic acid (CAS 1822843-97-9)
- Urazol (1,2,4-triazolidine-3,5-dione) (CAS 3232-84-6)
- 1-(4-Methoxyphenyl)-2,5-dimethylpyrrole (CAS 5044-27-9)
- N-(naphthalen-1-yl)-4-(3-nitrophenyl)thiazol-2-amine (CAS 326015-03-6)
- 1-azaspiro[4.5]decan-4-ol (CAS 1557017-04-5)
- 5,6,7,8-Tetrahydro-4H-cyclohepta[b]furan-4-one (CAS 41043-06-5)
- Vancomycin EP Impurity G (CAS CATO-C4X-17758)
- 1173755-55-9 AIW6036FAS Eteplirsen [USAN:INN] RNA, (P-deoxy-P-(dimethylamino))(2',3'-dideoxy-2',3'-imino-2',3'-seco)(2'a-5')(C-m5U-C-C-A-A-C-A-m5U-C-A-A-G-G-A-A-G-A-m5U-G-G-C-A-m5U-m5U-m5U-C-m5U-A-G), 5'-(P-(4-((2-(2-(2-hydroxyethoxy)ethoxy)ethoxy)carbonyl)-1-piperazinyl)-N,N-dimethylphosphonamidate) RNA, (P-deoxy-P-(dimethylamino))(2',3'-dideoxy-2',3'-imino-2',3'-seco)(2'a5')(C-m5U- C-C-A-A-C-A-m5U-C-A-A-G-G-A-A-G-A-m5U-G-G-C-A-m5U-m5U-m5U-C-m5U-A-G), 5'-(P-(4-((2-(2-(2-hydroxyethoxy)ethoxy)ethoxy)carbonyl)-1-piperazinyl)-N,N- dimethylphosphonamidate) Eteplirsen AVI 4658 AVI-4658 UNII-AIW6036FAS Exondys 51 (CAS 1173755-55-9)
- Semaglutide Impurity 177 (CAS CATO-C4X-2226177)
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