5-Amino-3-ethyl-1-(3-methoxyphenyl)-1H-pyrazole-4-carbonitrile CAS 650628-98-1
| CAS No. | 650628-98-1 |
| Molecular Formula | C13H14N4O |
| Molecular Weight | 242.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H14N4O, 5-Amino-3-ethyl-1-(3-methoxyphenyl)-1H-pyrazole-4-carbonitrile contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 242.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
5-Amino-3-ethyl-1-(3-methoxyphenyl)-1H-pyrazole-4-carbonitrile (CAS 650628-98-1) is a high-purity analytical reference standard with the molecular formula C13H14N4O and a molecular weight of 242.28 g/mol.
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.
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 | C13H14N4O |
| Molecular Weight | 242.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
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- (3E)-3-[Amino(4-methylpiperazin-1-yl)methylidene]prop-1-ene-1,1,3-tricarbonitrile (CAS 154124-60-4)
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- 5-Amino-1-(4-ethoxyphenyl)-3-methyl-1H-pyrazole-4-carbonitrile (CAS 1962540-59-5)
Recommended Standards
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- 4-(Pyridin-3-yl)-6-(pyrrolidin-1-yl)-1,3,5-triazin-2-amine (CAS 32664-45-2)
- 6-Amino-2-(3,4-dihydroisoquinolin-2(1H)-yl)pyrimidin-4-ol (CAS 882399-24-8)
- (s)-1-(3-Methylbenzyl)pyrrolidin-3-amine dihydrochloride (CAS 169452-13-5)
- 2,6-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-benzoic acid ethyl ester (CAS 1198615-67-6)
- 3-(1-Sulfamoylethyl)benzenesulfonamide (CAS 1251025-08-7)
- 3-Chloro-5,6,7,8-tetrahydropyrido[4,3-c]pyridazine (CAS 45882-63-1)
- 2-(2-(4-Formylpiperazin-1-yl)-2-oxoethoxy)acetic acid (CAS 878976-13-7)
- 4-Amino-6-fluoro-3-Iodo (1H)indazole (CAS 885523-02-4)
- 6-Methoxy-4-((trimethylsilyl)ethynyl)pyridin-3-amine (CAS 227180-22-5)
- N-Nitroso-4-Piperidinol (CAS 55556-93-9)
- Ethyl 2-(3-amino-1h-pyrazol-1-yl)propanoate (CAS 1240577-90-5)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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