Ethyl 1-(tert-butyl)-1H-pyrazole-3-carboxylate CAS 682757-49-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 682757-49-9 |
| Molecular Formula | C10H16N2O2 |
| Molecular Weight | 196.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 1-(tert-butyl)-1H-pyrazole-3-carboxylate (CAS 682757-49-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H16N2O2. Molecular weight: 196.25 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H16N2O2 |
| Molecular Weight | 196.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Ethyl 1-(cyanomethyl)piperidine-4-carboxylate (CAS 460094-92-2)
- Ethyl 1,3-diethyl-1H-pyrazole-5-carboxylate (CAS 26381-80-6)
- Ethyl 1-(cyanomethyl)piperidine-3-carboxylate (CAS 946702-02-9)
- [4'-(Trifluoromethyl)[1,1'-biphenyl]-4-yl] acetonitrile (CAS 871252-44-7)
- 3-Hydroxy-5-(4-methoxyphenyl)-1H,5H,6H-pyrazolo[4,3-c]pyridazin-6-one (CAS 338405-80-4)
- 1-(1-Methyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-1H-1,2,4-triazol-3-amine (CAS 1248161-87-6)
- Pyrene-<SUP>13</SUP>C<SUB>16</SUB> (CAS 1228182-40-8)
- 5-Amino-4-(naphthalen-1-yl)-1,2,4-triazolidine-3-thiol (CAS 1956377-50-6)
- 2-(3-Bromo-4-fluorophenyl)morpholine (CAS 1338977-90-4)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
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