rac-(2S,3S)-2-(1,5-dimethyl-1H-pyrazol-4-yl)-1-(2-methoxyethyl)-5-oxopyrrolidine-3-carbonitrile CAS 2059909-61-2
| CAS No. | 2059909-61-2 |
| Molecular Formula | C13H18N4O2 |
| Molecular Weight | 262.31 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.
rac-(2S,3S)-2-(1,5-dimethyl-1H-pyrazol-4-yl)-1-(2-methoxyethyl)-5-oxopyrrolidine-3-carbonitrile (CAS 2059909-61-2) is a high-purity analytical reference standard with the molecular formula C13H18N4O2 and a molecular weight of 262.31 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, rac-(2S,3S)-2-(1,5-dimethyl-1H-pyrazol-4-yl)-1-(2-methoxyethyl)-5-oxopyrrolidine-3-carbonitrile is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 262.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C13H18N4O2 |
| Molecular Weight | 262.31 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 4 |
Recommended Standards
- rac-(2S,3S)-1-cyclopropyl-2-(1-methyl-1H-pyrazol-5-yl)-6-oxopiperidine-3-carboxamide (CAS 2059915-21-6)
- tert-Butyl (2-((5-cyanopyridin-2-yl)amino)ethyl)carbamate (CAS 477290-49-6)
- rac-(2R,3R)-1-cyclopropyl-2-(1-methyl-1H-imidazol-2-yl)-6-oxopiperidine-3-carboxamide (CAS 2044706-27-4)
- Tert-butyl (R)-(1-([1,2,4]triazolo[4,3-a]pyridin-3-yl)ethyl)carbamate (CAS 915375-35-8)
- (2-(4-Methylpiperazin-1-yl)pyridin-4-yl)boronic acid (CAS 1003043-58-0)
- Phenanthren-9-yl trifluoromethanesulfonate (CAS 120270-47-5)
- 2-((3-Benzylureido)oxy)acetic acid (CAS 1198777-83-1)
- N-(1-(tetrahydro-2H-pyran-2-yl)ethyl)thietan-3-amine (CAS 1864658-71-8)
- 2-[(2R)-Azetidin-2-yl]propan-2-ol (CAS 2165885-71-0)
- Methyl-(3-phenyl-[1,2,4]oxadiazol-5-ylmethyl)-amine (CAS 55983-96-5)
- Aprepitant Impurity 69 (CAS 178616-88-1)
- 1-Oxo-2,3-dihydro-1H-indene-4-boronic Acid Pinacol Ester (CAS 1221239-08-2)
- n-(4-Methylphenyl)-1,3-thiazole-5-carboxamide (CAS 901594-02-3)
- Semaglutide-d8 Tetratrifluoroacetate (CAS CATO-C4X-222617)
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