canyon components logo

QUINIDINE Chemical compatibility with O-rings, rubbers, & plastics

Quinidine is a white crystalline alkaloid derived from the bark of the cinchona tree. It is an antiarrhythmic agent used to treat and prevent various types of irregular heartbeats, such as atrial fibrillation and ventricular tachycardia. Quinidine works by blocking sodium channels, which helps to stabilize the heart's electrical activity and restore normal rhythm. It is also used to treat certain types of malaria caused by Plasmodium falciparum, particularly when other treatments have failed or are not available. Quinidine is available in various formulations, including tablets, capsules, and injections. However, its use may be associated with side effects such as nausea, diarrhea, dizziness, and QT prolongation. Careful monitoring and dosage adjustments are necessary to ensure its safe and effective use. Quinidine has a long history of medical use and remains an important medication for certain cardiac and infectious conditions.

Need QUINIDINE resistant plastics, O-rings, rubbers, and seals? Get in touch now!


Canyon Components strives to meet all customer service requests. If you need something that isn't listed below, feel free to contact a Canyon Components product and application consultant and let our knowledgeable staff help you design the perfect part for your needs.

Paint covered o-ring
MaterialPerformanceGet a quote
FFKM (CanRez™, Kalrez®, Chemraz®)Excellent: <15% SwellingGet a quote
FKM ETP (Viton® Extreme)Excellent: <15% SwellingGet a quote
FKM (Viton®)Excellent: <15% SwellingGet a quote
NBR (Buna-N, Nitrile)Acceptable: <15-25% SwellingGet a quote
HNBR (Hydrogenated Nitrile)Acceptable: <15-25% SwellingGet a quote
EPDM (Ethylene Propylene)Not Recommended: Over 40% SwellingGet a quote
Aflas® (TFE/P, FEPM)--- Insufficient Testing DataGet a quote
Silicone (VMQ, PVMQ)--- Insufficient Testing DataGet a quote
Fluorosilicone (FVMQ)Acceptable: <15-25% SwellingGet a quote
Polyurethane (PU, AU)Poor: 25-40% SwellingGet a quote
Teflon® (PTFE)--- Insufficient Testing DataGet a quote
Neoprene (Chloroprene)Not Recommended: Over 40% SwellingGet a quote
SBR (Styrene-Butadiene)Not Recommended: Over 40% SwellingGet a quote
ACM (Acrylic Rubber)Not Recommended: Over 40% SwellingGet a quote
Butyl (IIR, Isobutylene Isoprene)Not Recommended: Over 40% SwellingGet a quote
Butadiene Rubber (BR)Not Recommended: Over 40% SwellingGet a quote
Isoprene Rubber (Polyisoprene)Not Recommended: Over 40% SwellingGet a quote
Natural Rubber (NR)Not Recommended: Over 40% SwellingGet a quote
Hypalon (CSPE)Not Recommended: Over 40% SwellingGet a quote
Metal Piston

Get a quote now!

Groove Design References

Learn More

Coatings, Packaging, & Other Services

Learn More

Custom Parts & Custom O-rings

Learn More