2-(1-Isobutyl-1H-pyrazol-3-yl)acetic acid CAS 1782284-08-5
| CAS No. | 1782284-08-5 |
| Molecular Formula | C9H14N2O2 |
| Molecular Weight | 182.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(1-Isobutyl-1H-pyrazol-3-yl)acetic acid (CAS 1782284-08-5), molecular formula C9H14N2O2 and molecular weight 182.22 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H14N2O2, 2-(1-Isobutyl-1H-pyrazol-3-yl)acetic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 182.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | 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.) | 1994 |
| Nitrogen Atoms | 2 |
Related Isobutyl Standards
- methyl 1-isobutyl-1H-pyrazole-3-carboxylate (CAS 1170422-35-1)
- methyl 1-isobutyl-1H-pyrazole-5-carboxylate (CAS 1170514-87-0)
- 1-Isobutyl-3-methyl-1H-pyrazole-5-carboxylic acid (CAS 1486650-44-5)
- 3-Isobutyl-1-methyl-1H-pyrazole-4-carboxylic acid (CAS 1552231-60-3)
- 1-Isobutyl-5-methyl-1H-pyrazole-4-carboxylic acid (CAS 725746-95-2)
- 2-Isobutyl-5-methoxypyridazin-3(2H)-one (CAS 2059999-12-9)
- 5-Isobutyl-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 912451-06-0)
- Methyl 3-isobutyl-1H-pyrazole-5-carboxylate (CAS 517870-29-0)
Recommended Standards
- Tert-butyln-(2-cyanocyclopropyl)carbamate (CAS 1780038-41-6)
- 4-Azaspiro[bicyclo[2.2.2]octane-2,5'-oxazolidin]-2'-one (CAS 178419-45-9)
- β,2-dimethoxy-Benzeneethanol (CAS 1779955-32-6)
- (R)-4-Azaspiro[bicyclo[2.2.2]octane-2,5'-oxazolidin]-2'-one (CAS 178419-46-0)
- 3,4-Dichloro-4-n-pentylbenzophenone (CAS 951887-73-3)
- 2-Amino-4-cyclohexyl-1-hexyl-4-phenyl-1H-imidazol-5(4H)-one (CAS 922498-20-2)
- 5-amino-4-methylpentan-2-ol (CAS 1333608-52-8)
- 4-Methyl-5-(4-methylphenyl)thiophene-2-carboxylic acid (CAS 832737-68-5)
- 2-(Difluoromethyl)-4-methyl-5-(trifluoromethoxy)pyridine-3-acetonitrile (CAS 1361789-92-5)
- 3-Amino-N,4-bis(4-methoxyphenyl)-6-phenylthieno[2,3-b]pyridine-2-carboxamide (CAS 333777-93-8)
- (4-(Pyridin-3-ylmethyl)tetrahydro-2h-pyran-4-yl)methanamine dihydrochloride (CAS 1393330-72-7)
- 1-(2-Methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-4-methyl-1H-imidazole (CAS 1145786-44-2)
- 7-Bromo-4-fluoro-1H-indole (CAS 292636-09-0)
- Semaglutide Impurity 121 X Sodium Salt (CAS CATO-C4X-2226121)
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