solid, ≥98% (HPLC)

4-[3-(Cyclopentyloxy)-4-methoxyphenyl]-2-pyrrolidinone, ZK 62711
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

biological source

synthetic (organic)

Quality Level


≥98% (HPLC)




white to off-white


H2O: 0.2 mg/mL
ethanol: 7 mg/mL
DMSO: 7.3 mg/mL

SMILES string




InChI key


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General description

Rolipram enhances tissue protection, anatomical repair and functional recovery. It is used to treat asthma, arthritis, Huntington′s disease and multiple sclerosis. Rolipram inhibits injury-induced reductions in cyclic AMP, which is associated with acute central nervous system injury. It functions as an antidepressant, stimulates neurite outgrowth and axonal regeneration in the presence of myelin inhibitors.


Rolipram has been used:
  • to investigate its effects on testicular torsion–detorsion injury(36)
  • to block the effects of phosphodiesterase-4 (PDE4)(37)
  • as a component in chemically induced long-term potentiation (cLTP) induction media(38)


10 mg in glass bottle
25, 100 mg in poly bottle

Biochem/physiol Actions

Selective cAMP-specific phosphodiesterase (PDE4) inhibitor.

Features and Benefits

This compound is featured on the Phosphodiesterases page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
This compound is a featured product for Cyclic Nucleotide research. Click here to discover more featured Cyclic Nucleotide products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more.

Legal Information

LOPAC is a registered trademark of Sigma-Aldrich Co. LLC


13 - Non Combustible Solids

WGK Germany


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

CNS Regeneration: Basic Science and Clinical Advances (2011)
Raehannah J Jamshidi et al.
The Journal of pharmacology and experimental therapeutics, 359(2), 319-328 (2016-10-21)
A single administration of the κ opioid receptor (KOR) antagonist, norbinaltorphimine (norBNI), produces long-term reduction in KOR function in heterologous expression systems and brain that is mediated by activation of c-Jun N-terminal kinase (JNK). In this study, we examined the...
J Zhu et al.
CNS drug reviews, 7(4), 387-398 (2002-02-07)
Rolipram is a selective inhibitor of phosphodiesterases (PDE) IV, especially of the subtype PDE IVB. These phosphodiesterases are responsible for hydrolysis of the cyclic nucleotides cAMP and cGMP, particularly in nerve and immune cells. Consequences of rolipram-induced elevation of intracellular...
Hao Huang et al.
Acta pharmacologica Sinica, 37(12), 1543-1554 (2016-09-27)
Phosphodiesterase 4 (PDE4) isozymes are involved in different functions, depending on their patterns of distribution in the brain. The PDE4 subtypes are distributed in different inflammatory cells, and appear to be important regulators of inflammatory processes. In this study we...
Eva Bollen et al.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 39(11), 2497-2505 (2014-05-13)
Memory consolidation is defined by the stabilization of a memory trace after acquisition, and consists of numerous molecular cascades that mediate synaptic plasticity. Commonly, a distinction is made between an early and a late consolidation phase, in which early refers...
Related Content
Cyclic nucleotides, including cyclic AMP (cAMP), cyclic GMP (cGMP) and cyclic ADP-ribose, have been extensively studied as second messengers of intracellular events initiated by activation of GPCRs. cAMP modifies cell function in all eukaryotic cells, principally through the activation of cAMP-dependent protein kinase (PKA), but also through cAMP-gated ion channels and guanine nucleotide exchange factors directly activated by cAMP.
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