Buy pharmaceutical chemicals online | pharmaceutical chemicals manufacturers | pharmaceutical chemicals suppliers - Worldofchemicals



Ribavirin is an anti-viral drug indicated for severe RSV infection, hepatitis C infection (used in conjunction with peginterferon alfa-2b or peginterferon alfa-2a) and other viral infections. Ribavirin is a prodrug, which when metabolized resembles purine RNA nucleotides. In this form it interferes with RNA metabolism required for viral replication.

Properties Suppliers

Rifaximin is a semisynthetic, rifamycin-based non-systemic antibiotic, meaning that the drug will not pass the gastrointestinal wall into the circulation as is common for other types of orally administered antibiotics. It is used to treat diarrhea caused by E. coli.Rifaximin is a product of synthesis of rifamycin, an antibiotic with low gastrointestinal absorption and good antibacterial activity. It acts on the beta-subunit of the deoxyribonucleic acid (DNA)-dependent ribonucleic acid (RNA) polymerase enzyme of microorganisms to inhibit RNA synthesis.

Properties Suppliers

Ritodrine is a tocolytic drug, used to stop premature labor. It is a beta-2 adrenergic receptor agonist.

Properties Suppliers

Rituximab is a chimeric monoclonal antibody against the protein CD20, which is primarily found on the surface of immune system B cells. Rituximab destroys B cells and is therefore used to treat diseases which are characterized by excessive numbers of B cells, overactive B cells, or dysfunctional B cells. Rituximab is used to treat cancers of the white blood system such as leukemias and lymphomas, including Hodgkin's lymphoma and its lymphocyte predominant subtype.

Properties Suppliers

Roxindole is a dopaminergic and serotonergic drug which was originally developed for the treatment of schizophrenia. In clinical trials its antipsychotic efficacy was only modest but it was unexpectedly found to produce potent and rapid antidepressant and anxiolytic effects. As a result, roxindole was further researched for the treatment of depression instead. It has also been investigated as a therapy for Parkinson's disease and prolactinoma.


Rubitecan is an orally available camptothecin analogue that also has potential for delivery transdermally or by inhalation. Like all of the camptothecins, its antitumour activity is mediated through the inhibition of DNA topoisomerase I, which is involved in relaxing supercoiled DNA, which is important for the process of DNA replication and RNA transcription.

Properties Suppliers

SB-215505 is a drug which acts as a potent and selective antagonist at the serotonin 5-HT2B receptor, with good selectivity over the related 5-HT2A and 5-HT2C receptors. It is used in scientific research into the function of the 5-HT2 family of receptors, especially to study the role of 5-HT2B receptors in the heart, and to distinguish 5-HT2B-mediated responses from those produced by 5-HT2A or 5-HT2C.


SB-242084 is a psychoactive drug and research chemical which acts as a selective antagonist for the 5HT2C receptor. It has anxiolytic effects, and enhances dopamine signalling in the limbic system, as well as having complex effects on the dopamine release produced by cocaine, increasing it in some brain regions but reducing it in others. It has been shown to increase the effectiveness of the selective serotonin reuptake inhibitor class of antidepressants, and may also reduce their side effects.

Properties Suppliers
SKF 82958

SKF 82958 is a synthetic compound of the benzazepine class that acts as a D1 and D5 receptor full agonist. SKF 82958 and similar D1-like-selective full agonists like SKF 81297 and 6-Br-APB produce characteristic anorectic effects, hyperactivity and self-administration in animals, with a similar but not identical profile to that of dopaminergic stimulants such as amphetamine.

SR 142948

SR-142948 is a drug used in scientific research which is a non-peptide antagonist selective for the neurotensin receptors, although not selective between subtypes. It has been used to study the role of neurotensin in the regulation of dopamine receptor activity and glutamate signalling in the brain, and in animal studies SR-142948 blocked the effects of stimulant drugs, including MDMA.

Properties uses cookies to ensure that we give you the best experience on our website. By using this site, you agree to our Privacy Policy and our Terms of Use. X