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Key Documents

SML0585

Sigma-Aldrich

Piclamilast

≥98% (HPLC)

Synonym(s):

3-(Cyclopentyloxy)-N-(3,5-dichloro-4-pyridinyl)-4-methoxy-benzamide, N-(3,5-Dichloropyrid-4-yl)-3-cyclopentyloxy-4-methoxybenzamide, RP 73-401, RP 73401, RPR 73401

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About This Item

Empirical Formula (Hill Notation):
C18H18Cl2N2O3
CAS Number:
144035-83-6
Molecular Weight:
381.25
UNSPSC Code:
41106305
NACRES:
NA.77

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 20 mg/mL, clear

storage temp.

2-8°C

InChI

1S/C18H18Cl2N2O3/c1-24-15-7-6-11(8-16(15)25-12-4-2-3-5-12)18(23)22-17-13(19)9-21-10-14(17)20/h6-10,12H,2-5H2,1H3,(H,21,22,23)

InChI key

RRRUXBQSQLKHEL-UHFFFAOYSA-N

Application

Piclamilasthas been used as a phosphodiesterase-4 (PDE4) inhibitor to treat cultures at the indicated time points after blast exposure.

Biochem/physiol Actions

Piclamilast is a potent and selective cyclic AMP phosphodiesterase-4 inhibitor that exhibits equal, high affinity for both the PDE4 high- and low-affinity rolipram binding states (HARBS and LARBS). Recent studies shown that piclamilast inhibits Trypanosoma brucei PDEB1 (TbrPDEB1) and TbrPDEB2.
Piclamilast is also known as N-(3,5-dichloropyrid-4-yl)-3-cyclopentyloxy-4-methoxybenzamide. Piclamilast regulates the cAMP (cyclic adenosine monophosphate) signaling pathway. It increases the retinoid-dependent transactivation and the degradation of retinoic acid receptor α (RARα).

Features and Benefits

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 featured on the Phosphodiesterases page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sean D McKenna et al.
Endocrinology, 146(1), 208-214 (2004-09-28)
Phosphodiesterases (PDEs) are a family of enzymes that hydrolyze cyclic nucleotides to render them biologically inactive. As such, these enzymes are critical regulators of signal transduction pathways that use cyclic nucleotides as second messengers. PDE4 is one such member that
Jae Youl Cho et al.
Pharmacological research, 49(5), 423-431 (2004-03-05)
Phosphodiesterase (PDE) IV inhibitors have been reported to possess potent anti-inflammatory activities through enhancement of cAMP. In this study, the immunopharmacological effect of PDE IV inhibitor (RP73401) was further carefully evaluated. RP73401 strongly blocked the production of tumor necrosis factor
Yvonne P de Visser et al.
American journal of physiology. Lung cellular and molecular physiology, 302(1), L56-L67 (2011-09-29)
Phosphodiesterase (PDE) 4 inhibitors are potent anti-inflammatory drugs with antihypertensive properties, and their therapeutic role in bronchopulmonary dysplasia (BPD) is still controversial. We studied the role of PDE4 inhibition with piclamilast on normal lung development and its therapeutic value on
Phosphodiesterase-4 inhibition restored hippocampal long term potentiation after primary blast
Vogel EW, et al.
Experimental Neurology, 293(40), 91-100 (2017)
Yu Zhao et al.
The Journal of pharmacology and experimental therapeutics, 307(1), 246-253 (2003-09-05)
The effects of antidepressant treatment on the high- and low-affinity rolipram binding sites on type 4 phosphodiesterase (PDE4) were determined; previous work had shown that repeated antidepressant treatment increases the overall expression of PDE4. Rats were administered different doses of
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