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Teniposide is a chemotherapeutic medication mainly used in the treatment of childhood acute lymphocytic leukemia (ALL). It is in a class of drugs known as podophyllotoxin derivatives and slows the growth of cancer cells in the body. The medication is injected though a vein and burns if it leaks under the skin. It is sometimes used in combination with other anticancer drugs. Teniposide, when used with other chemotherapeutic agents for the treatment of ALL, results in severe myelosuppression. Other common side effects include gastrointestinal toxicity, hypersensitivity reactions, and alopecia.

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Terutroban is an antiplatelet agent developed by Servier Laboratories. It is a selective antagonist of the thromboxane receptor. It blocks thromboxane induced platelet aggregation and vasoconstriction.


Tetracaine is a potent local anesthetic of the ester group. It is mainly used topically in ophthalmology and as an antipruritic, and it has been used in spinal anesthesia. In biomedical research, tetracaine is used to alter the function of calcium release channels that control the release of calcium from intracellular stores. It is an allosteric blocker of channel function. At low concentrations, tetracaine causes an initial inhibition of spontaneous calcium release events, while at high concentrations, tetracaine blocks release completely.

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Tetrazepam is used to treat muscle spasm.


Tezosentan is a non-selective ETA and ETB receptor antagonist. It acts as a vasodilator and was designed as a therapy for patients with acute heart failure. Recent studies have shown however, that tezosentan does not improve dyspnea or reduce the risk of fatal or nonfatal cardiovascular events.


Thiomersal is an organomercury compound. This compound is a well established antiseptic and antifungal agent. It has been used as a preservative in vaccines, immunoglobulin preparations, skin test antigens, antivenins, ophthalmic and nasal products, and tattoo inks.

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Thiouracil is a white crystalline compound,that interferes with the synthesis of thyroxine, It is used to reduce the action of the thyroid gland, especially in the treatment of hyperthyroidism.

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Tianeptine is a drug used for treating major depressive episodes. It has structural similarities to the tricyclic antidepressants, but it has different pharmacological properties. Until recently, it has been assumed that tianeptine is a selective serotonin reuptake enhancer, opposite to the action of SSRIs. However, newer studies question this hypothesis; one review suggests that long-term administration of tianeptine has no effect on serotonin pathways, while another still points to the cancellative effects of tianeptine and fluoxetine coadministration on serotonin reuptake. Tianeptine enhances the extracellular concentration of dopamine in the nucleus accumbens and modulates the D2 and D3 dopamine receptors, but this effect is modest and almost certainly indirect. There is also action on the NMDA and AMPA receptors. Recent reviews point to this pathway as a hypothesized mechanism of action, based on tianeptine's effect of promoting stress-associated impaired neuroplasticity.

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Ticagrelor is an oral antiplatelet treatment for acute coronary syndromes (ACS) in a new chemical class called cyclopentyltriazolopyrimidines (CPTPs). Ticagrelor works by preventing the formation of new blood clots and maintaining blood flow in the body to help reduce a patient's risk of another cardiovascular event (called atherothrombotic events) such as a heart attack or cardiovascular death. Ticagrelor is the first reversibly-binding oral adenosine diphosphate (ADP) receptor antagonist. Ticagrelor is extensively metabolized in humans with approximately 27% of the dose excreted as the parent compound.

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Tipifarnib is a farnesyltransferase inhibitor that is being investigated in patients 65 years of age and older with newly diagnosed acute myeloid leukemia. It is also being tested in clinical trials in patients in certain stages of breast cancer.

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