Description
(S)-4,4-Difluoropyrrolidine-2-carbonitrile hydrochloride (CAS No. 869489-04-3) is a high-purity fluorinated organic compound with the molecular formula C5H7ClF2N2. This chiral building block features a stereospecific (S)-configuration and contains both difluoropyrrolidine and nitrile functional groups, making it a valuable intermediate for pharmaceutical and agrochemical synthesis. The hydrochloride salt form enhances stability and solubility for handling in synthetic applications. With a molecular weight of 168.57 g/mol, this compound is rigorously tested by HPLC, NMR, and mass spectrometry to ensure ≥95% purity. Ideal for researchers developing protease inhibitors, kinase modulators, or other bioactive molecules where fluorinated pyrrolidine scaffolds are desired. Supplied as a white to off-white crystalline solid in amber glass vials under inert atmosphere to prevent degradation.
Properties
- CAS Number: 869489-04-3
- Complexity: 158
- IUPAC Name: (2S)-4,4-difluoropyrrolidine-2-carbonitrile;hydrochloride
- InChI: InChI=1S/C5H6F2N2.ClH/c6-5(7)1-4(2-8)9-3-5;/h4,9H,1,3H2;1H/t4-;/m0./s1
- InChI Key: BOGMTOHWIVLVJE-WCCKRBBISA-N
- Exact Mass: 168.0265822
- Molecular Formula: C5H7ClF2N2
- Molecular Weight: 168.57
- SMILES: C1[C@H](NCC1(F)F)C#N.Cl
- Topological: 35.8
- Monoisotopic Mass: 168.0265822
- Synonyms: 869489-04-3, (S)-4,4-Difluoropyrrolidine-2-carbonitrile hydrochloride, (2S)-4,4-difluoropyrrolidine-2-carbonitrile hydrochloride, (S)-4,4-Difluoropyrrolidine-2-carbonitrile HCl, (2S)-4,4-difluoropyrrolidine-2-carbonitrile;hydrochloride, MFCD28403267, C5H7ClF2N2, SCHEMBL3848539, BOGMTOHWIVLVJE-WCCKRBBISA-N, BS-43279, CS-0169605, EN300-7646734, (2S)-4,4-Difluoropyrrolidine-2-carbonitrile HCl, (S)-4,4-Difluoropyrrolidine-2-carbonitrilehydrochloride
Application
This fluorinated pyrrolidine derivative serves as a key chiral synthon in medicinal chemistry, particularly for introducing constrained, polar motifs into drug candidates. The difluoro substitution modulates lipophilicity and metabolic stability while the nitrile group offers versatile derivatization potential. Applications include development of cathepsin inhibitors, peptidomimetics, and CNS-targeted therapeutics where the rigid pyrrolidine scaffold enforces specific bioactive conformations. The hydrochloride salt facilitates handling in polar solvents for amide coupling or reduction reactions.
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