3-tert-Butyl-1-methylpyrazole-5-carboxylic Acid CAS 175277-11-9
| CAS No. | 175277-11-9 |
| Molecular Formula | C9H14N2O2 |
| Molecular Weight | 182.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-tert-Butyl-1-methylpyrazole-5-carboxylic Acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-tert-Butyl-1-methylpyrazole-5-carboxylic Acid (CAS 175277-11-9), a certified reference material (molecular formula C9H14N2O2, MW 182.22 g/mol) for analytical method development and quality control.
3-tert-Butyl-1-methylpyrazole-5-carboxylic Acid (C9H14N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 3-tert-Butyl-1-methylpyrazole-5-carboxylic Acid 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.
Physical & Chemical Properties
| Molecular Formula | C9H14N2O2 |
| Molecular Weight | 182.22 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.) | 2007 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 1-(tert-Butyl)-3-methyl-1H-pyrazole-5-carboxylic acid (CAS 175277-09-5)
- 2-Acetyl-5,5-dimethylcyclohexane-1,3-dione (CAS 1755-15-3)
- 4-Amino-6-(tert-butyl)-1-methyl-1,3,5-triazin-2(1H)-one (CAS 175204-73-6)
- 2,10-Dihydrophenazine (CAS 177028-12-5)
- 4-Ethyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carbonitrile (CAS 1708301-25-0)
- Tert-butyl (1-(3-fluoropropyl)azetidin-3-yl)carbamate (CAS 2222845-47-6)
- 8-(difluoromethyl)quinolin-3-ol (CAS 1261601-05-1)
- 2,3,6-Trichlorobenzaldehyde (CAS 4659-47-6)
- Methyl 4-(aminomethyl)-5-methylfuran-2-carboxylate (CAS 748707-63-3)
- 2-Ethoxy-4-(1H-pyrazol-1-yl)aniline (CAS 1341982-06-6)
- Lenalidomide Impurity 42 (CAS 1063995-49-2)
- (4-bromo-3-fluorophenyl)-boronic acid 374790-97-3 4-Bromo-3-fluorobenzeneboronic acid 4-Bromo-3-fluorophenylboronic acid (CAS 374790-97-3)
- 2-(4-(2-Methoxyphenyl)-1H-1,2,3-triazol-1-yl)-2-methylpropanoic acid (CAS 2138531-35-6)
- D-Thr5-Tirzepatide (CAS CATO-CPTD788926)
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