APIs for research and impurities

Tirzepatide impurities.

N,N'''-(Dithia-2,1-ethanediyl)bis-(N'-cyano-N''-methyl)guanidine is a metabolite of guanidine. It is a synthetic compound that is used as an analytical reference standard and impurity in pharmaceutical products. It is also used to create an impurity standard for HPLC analysis. This compound has been found in natural sources such as plants and animal tissues, but it can also be synthesized in the lab. The CAS number for this substance is 74886-59-2.

Atorvastatin impurity F is an impurity that can be found in atorvastatin. It is a white to off-white crystalline solid with a melting point of 142°C. It has a molecular weight of 273.5 and chemical formula of C14H13N3O2. This impurity can be found in atorvastatin as an API impurity, which may have an effect on the efficacy or toxicity of the drug product. Impurities are present in all pharmaceutical products and should be identified, characterized, and quantified for quality control purposes. Impurities are often unavoidable byproducts of the manufacturing process and can lead to potential safety concerns if they are not detected early on during drug development. The presence of impurities may also affect the pharmacological effects or therapeutic efficacy of the drug product.

N-Desmethyl galanthamine is a plant alkaloid that is found in the Huperzia serrata plant. It has been shown to have cholinergic activity and calcium binding properties. N-Desmethyl galanthamine inhibits acetylcholinesterase, an enzyme responsible for the breakdown of acetylcholine, which is a neurotransmitter. This inhibition leads to increased levels of acetylcholine, which results in increased neuron stimulation and improved memory function. N-Desmethyl galanthamine also binds to β2 nicotinic receptor sites and blocks the binding of nicotine, leading to decreased nicotine dependence.

Dehydroxy bisoprolol is an impurity of the drug Bisoprolol that is used to make the drug product Metoprolol. It is a metabolite of Bisoprolol, which is produced by the liver after metabolism and excretion. Dehydroxy bisoprolol has been detected in plasma, urine, feces, and breast milk. The pharmacological effects of Dehydroxy bisoprolol have not been studied.

Terbinafine is an antifungal agent that belongs to the family of medicines. It is used to treat fungal infections of the skin, nails and scalp. Terbinafine can also be used to treat other types of fungal infections, such as tinea corporis (ringworm), tinea cruris (jock itch), tinea pedis (athlete's foot) and tinea capitis (scalp ringworm). Terbinafine dimer impurity dihydrochloride is a by-product of terbinafine hydrochloride that has been shown to have industrial applications as a dispersant or lubricant in industries such as papermaking.

N-[(1R)-1-(1-Naphthalenyl)ethyl]carbamic acid 3-[3-(trifluoromethyl)phenyl]propyl] ester is a drug product. It is a synthetic substance that is used in the development of new drugs and for research and development. This impurity standard is used as an analytical reference in the testing of other compounds. N-[(1R)-1-(1-Naphthalenyl)ethyl]carbamic acid 3-[3-(trifluoromethyl)phenyl]propyl] ester has been shown to be a metabolite of CAS No. 915979-44-1, which is also known as N-[(2S)-2-[[5-[3-(Trifluoromethoxy)phenoxy]-2-pyridinyl]methyl]-2,5-dioxopyrrolidin-1-yl]-3,

Methylisothiourea is a label that can be used to identify cells in vivo. It is a fluorescent molecule that is activated by the presence of cytokines, such as IL-1β and TNF-α. Methylisothiourea has been used to evaluate corneal epithelial cells for their response to injury. The effect of Methylisothiourea on the tissue was assessed by histology and evaluated by the presence of cytokine concordance with the fluorescence intensity. Reconstitution experiments were conducted in vitro using human tissues. It was found that Methylisothiourea was not toxic at concentrations up to 500 μM and that it did not interfere with DNA synthesis or cell division at concentrations up to 10 mM.

Olsalazine sodium impurity D is a natural substance that is present as an impurity in the drug Olsalazine sodium. It is used as an analytical standard for Olsalazine sodium and its metabolites, which are involved in drug development. The purity of this substance can be customized by our research and development team. This product has CAS number 93964-55-7 and is available at a reasonable price.