All Photos(1)




≥98% (HPLC)

1,3-Dihydro-1-phenyl-3,3-bis(4-pyridinylmethyl)-2H-indol-2-one, DuP 996
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:

Quality Level


≥98% (HPLC)


white to off-white


DMSO: >10 mg/mL
ethanol: 240 mg/mL

SMILES string




InChI key


Gene Information

General description

Linopiridine is a class of drugs that activates the nervous system and enhances the acetylcholine (Ach) in the brain. It can be prepared by reacting oxiindole with 4-picolyl chloride hydrochloride in the presence of a KF-Al2O3 catalyst.


10, 50 mg in glass bottle

Biochem/physiol Actions

Stimulates release of acetylcholine and other neurotransmitters; cognitive enhancer.

Legal Information

Sold under exclusive license from DuPont.

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

Richardson N Leão et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 29(42), 13353-13364 (2009-10-23)
While the synaptic mechanisms involved in the generation of in vitro network oscillations have been widely studied, little is known about the importance of voltage-gated currents during such activity. Here we study the role of the M-current (I(M)) in the
Alexander R Mackie et al.
The Journal of pharmacology and experimental therapeutics, 325(2), 475-483 (2008-02-15)
Pressor effects of the vasoconstrictor hormone arginine vasopressin (AVP), observed when systemic AVP concentrations are less than 100 pM, are important for the physiological maintenance of blood pressure, and they are also the basis for therapeutic use of vasopressin to
Olga Zavaritskaya et al.
Hypertension (Dallas, Tex. : 1979), 61(1), 151-159 (2012-11-28)
KCNQ channels have been identified in arterial smooth muscle. However, their role in vasoregulation and chronic vascular diseases remains elusive. We tested the hypothesis that KCNQ channels contribute to periadventitial vasoregulation in peripheral skeletal muscle arteries by perivascular adipose tissue
Motoharu Yoshida et al.
Journal of neurophysiology, 98(5), 2779-2794 (2007-08-31)
The M-current (current through Kv7 channels) is a low-threshold noninactivating potassium current that is suppressed by muscarinic agonists. Recent studies have shown its role in spike burst generation and intrinsic subthreshold theta resonance, both of which are important for memory
Microwave-assisted rapid synthesis of neurotransmitter release enhancer linopiridine and its new analogues
Yadav JS and Reddy BVS
Synthetic Communications, 33(18), 3115-3121 (2003)

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