2-Amino-4-(4-chloro-3-methyl-1h-pyrazol-1-yl)-2-methylbutanoic acid CAS 1342607-83-3
| CAS No. | 1342607-83-3 |
| Molecular Formula | C9H14ClN3O2 |
| Molecular Weight | 231.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Amino-4-(4-chloro-3-methyl-1h-pyrazol-1-yl)-2-methylbutanoic 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.
2-Amino-4-(4-chloro-3-methyl-1h-pyrazol-1-yl)-2-methylbutanoic acid (CAS 1342607-83-3), molecular formula C9H14ClN3O2 and molecular weight 231.68 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H14ClN3O2, 2-Amino-4-(4-chloro-3-methyl-1h-pyrazol-1-yl)-2-methylbutanoic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 231.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C9H14ClN3O2 |
| Molecular Weight | 231.68 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Amino Standards
- (r)-2-Amino-2-(5-chloro-2,3-dimethoxyphenyl)ethan-1-ol (CAS 1213000-04-4)
- (r)-2-Amino-2-(3-chloro-4,5-dimethoxyphenyl)ethan-1-ol (CAS 1213516-68-7)
- Methyl 2-amino-4-(4-chloro-1h-pyrazol-1-yl)-2-methylbutanoate (CAS 1249617-58-0)
- 2-Amino-4-(4-chloro-3,5-dimethyl-1h-pyrazol-1-yl)butanoic acid (CAS 1310081-99-2)
- Ethyl 2-amino-3-(4-chloro-3-methyl-1h-pyrazol-1-yl)propanoate (CAS 1339471-25-8)
- Ethyl 2-(3-amino-4-chloro-1h-pyrazol-1-yl)butanoate (CAS 1339845-06-5)
- 2-Amino-4-(4-chloro-5-methyl-1h-pyrazol-1-yl)-2-methylbutanoic acid (CAS 1342081-18-8)
- Methyl 2-amino-4-(4-chloro-3-methyl-1h-pyrazol-1-yl)butanoate (CAS 1342486-53-6)
Recommended Standards
- Ethyl 2-amino-3-(4-chloro-5-methyl-1h-pyrazol-1-yl)propanoate (CAS 1342959-89-0)
- Methyl 2-amino-4-(4-chloro-5-methyl-1h-pyrazol-1-yl)butanoate (CAS 1343023-86-8)
- 3-(4-Chloro-5-methyl-1h-pyrazol-1-yl)-2-methyl-2-(methylamino)propanoic acid (CAS 1341496-28-3)
- (6-Chloro-4-methylpyridin-3-yl)(phenyl)methanone (CAS 1355181-99-5)
- 3-(2,4-Dichlorophenoxy)-3-oxopropanoic acid (CAS 110138-39-1)
- (S)-1-(3-Bromopyridin-2-yl)ethanamine hydrochloride (CAS 1956434-70-0)
- 1-(2-Ethoxyphenyl)urea (CAS 148-70-9)
- (6-Cyclohexylpyridin-3-yl)boronic acid (CAS 2225173-72-6)
- Tert-butyl (S)-2-(2-((3,3,3-trifluoropropyl)sulfonyl)ethyl)pyrrolidine-1-carboxylate (CAS 1670272-76-0)
- (2-(Ethoxycarbonyl)allyl)triphenylphosphonium bromide (CAS 38104-00-6)
- 3-Propyl-5-(propylthio)-4h-1,2,4-triazol-4-amine (CAS 449746-06-9)
- Ethyl 2-Hydroxy-2-(1-naphthyl)propionate (CAS 198287-32-0)
- 2,2-Dimethyl-6-(trifluoromethyl)-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 1517344-87-4)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
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