2-(5-Amino-3-isopropyl-4-(methylsulfonyl)-1H-pyrazol-1-yl)ethanol CAS 1713476-54-0
| CAS No. | 1713476-54-0 |
| Molecular Formula | C9H17N3O3S |
| Molecular Weight | 247.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(5-Amino-3-isopropyl-4-(methylsulfonyl)-1H-pyrazol-1-yl)ethanol (CAS 1713476-54-0) is a high-purity analytical reference standard with the molecular formula C9H17N3O3S and a molecular weight of 247.31 g/mol.
2-(5-Amino-3-isopropyl-4-(methylsulfonyl)-1H-pyrazol-1-yl)ethanol (C9H17N3O3S) contains an amide group, a sulfone group, a carboxylic acid 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.
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 | C9H17N3O3S |
| Molecular Weight | 247.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amino Standards
- Ethyl 3-amino-4-phenylthiophene-2-carboxylate (CAS 156424-61-2)
- methyl 3-amino-4-(4-methylphenyl)thiophene-2-carboxylate (CAS 160133-75-5)
- Methyl 3-amino-4-methyl-5-phenyl-2-thiophenecarboxylate (CAS 160133-79-9)
- Ethyl 2-Amino-4-phenylthiophene-3-carboxylate (CAS 4815-36-5)
- Ethyl 2-Amino-5-phenyl-3-thiophenecarboxylate (CAS 4815-34-3)
- Ethyl 3-amino-5-phenylthiophene-2-carboxylate (CAS 88534-50-3)
- Methyl 2-amino-4-(m-tolyl)thiophene-3-carboxylate (CAS 350997-09-0)
- Methyl 2-amino-4-(p-tolyl)thiophene-3-carboxylate (CAS 350997-08-9)
Recommended Standards
- Tert-butyl (2R,4R)-4-fluoro-2-(3-hydroxypropyl)pyrrolidine-1-carboxylate (CAS 1670272-96-4)
- Methyl (5-methyl-2-phenyl-1,3-thiazol-4-yl)acetate (CAS 175136-29-5)
- Ethyl 2-(2-phenylthiazol-4-yl)acetate, 97% (CAS 16441-34-2)
- 2-((4-Fluorobenzyl)sulfonyl)ethanethioamide (CAS 175276-88-7)
- 2-(3,5-Dichlorophenyl)-6-ethylbenzo[d]thiazole (CAS 1242293-52-2)
- 3-Bromo-1-propanol-1,1,2,2,3,3-d6 (CAS 284474-43-7)
- 5-Chloro-6-methoxynicotinaldehyde (CAS 132865-44-2)
- 2-(Cyano(4-fluorophenyl)methyl)benzonitrile (CAS 116617-31-3)
- 5-Chloroquinoline (CAS 635-27-8)
- 1-(2-Carboxyethyl)-3,3-dimethyl-3H-indol-1-ium iodide (CAS 86653-18-1)
- Ethyl 5-bromo-3-methylisoxazole-4-carboxylate (CAS 25786-74-7)
- Brexpiprazole Impurity 98 (CAS CATO-C4X-113198)
- 4-(Aminomethyl)pyridine-2-carbonitrile hydrochloride (CAS 1461713-44-9)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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