1-Butyl-1h-pyrazole-3-carboxylic acid CAS 1006493-60-2
| CAS No. | 1006493-60-2 |
| Molecular Formula | C8H12N2O2 |
| Molecular Weight | 168.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Butyl-1h-pyrazole-3-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.
1-Butyl-1h-pyrazole-3-carboxylic acid (CAS 1006493-60-2), molecular formula C8H12N2O2 and molecular weight 168.19 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-Butyl-1h-pyrazole-3-carboxylic acid (C8H12N2O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-Butyl-1h-pyrazole-3-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 | C8H12N2O2 |
| Molecular Weight | 168.19 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.) | 1988 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 3-(1,3-Dimethyl-1h-pyrazol-4-yl)propanoic acid (CAS 1006490-35-2)
- 1-(2-Methylpropyl)-1h-pyrazole-3-carboxylic acid (CAS 1006493-64-6)
- 3-(1-Ethyl-1H-pyrazol-3-yl)propanoic acid (CAS 1006483-09-5)
- 1-Butyl-1h-pyrazole-5-carboxylic acid (CAS 1006493-81-7)
- 5-(Chloromethyl)-2-methoxy-3-(trifluoromethyl)pyridine (CAS 1206124-61-9)
- 1-Acetyl-2-methylpyrrolidine-2-carboxylic acid (CAS 1409748-88-4)
- 4-Bromo-3-chloro-2-(difluoromethyl)pyridine-6-sulfonyl chloride (CAS 1805006-44-3)
- 1-Amino-3-methylanthracene-9,10-dione (CAS 10146-51-7)
- Hydrochlorothiazide Impurity 29 (CAS 957785-35-2)
- 5-Amino-1-(cyclopentylmethyl)-4-methylpyridin-2(1h)-one (CAS 1525578-89-5)
- 1,3-Bis(2-bromoethoxy)benzene 58929-74-1 6245AE C10H12Br2O2 (CAS 58929-74-1)
- Ticagrelor Impurity 137 (CAS 3721-26-4)
- (S)-Tetrahydrofuran-3-carbaldehyde (CAS 374082-39-0)
- [Plus-β-Ala28]-Semaglutide (CAS CATO-C4X-2226221)
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