Chemical articles without CAS registry number

chemical compound

solid under high pressure

chemical compound

Cyclopropatriene is a hypothetical compound () which is an allotrope of carbon. It was once proposed as a candidate for a spectroscopically observed tricarbon species. It is a cyclic cumulene.

In chemistry, hyponitrite may refer to the anion ([ON=NO]2−), or to any ionic compound that contains it. In organic chemistry, it may also refer to the group −O−N=N−O−, or any organic compound with the generic formula R1−O−N=N−O−R2, where R1 and R2 are organic groups. Such compounds can be viewed as salts and esters of hyponitrous acid. An acid hyponitrite is an ionic compound with the anion ([HON=NO]−).

chemical compound

Yersiniabactin (Ybt) is a siderophore found in the pathogenic bacteria Yersinia pestis, Yersinia pseudotuberculosis, and Yersinia enterocolitica, as well as several strains of enterobacteria including enteropathogenic Escherichia coli and Salmonella enterica. Siderophores, compounds of low molecular mass with high affinities for ferric iron, are important virulence factors in pathogenic bacteria. Iron—an essential element for life used for such cellular processes as respiration and DNA replication—is extensively chelated by host proteins like lactoferrin and ferritin; thus, the pathogen produc

medical condition

chemical compound

pharmaceutical drug

Atazanavir/ritonavir (ATV/r) is a fixed-dose combination antiretroviral medication used in the treatment of HIV/AIDS. It combines atazanavir and ritonavir. It may be used instead of lopinavir/ritonavir. It is taken by mouth.

malnutrition in children

Momelotinib, sold under the brand name Ojjaara among others, is an anticancer medication used for the treatment of myelofibrosis. It is a Janus kinase inhibitor and it is taken by mouth.

family of chemicals that release chlorine used for disinfection

chemical compound

chemical compound

medication

In chemistry, methanium is a complex positive ion with formula (metastable transitional form, a carbon atom covalently bonded to five hydrogen atoms) or (fluxional form, namely a molecule with one carbon atom covalently bonded to three hydrogen atoms and one dihydrogen molecule), bearing a +1 electric charge. It is a superacid and one of the onium ions, indeed the simplest carbonium ion.

Glecaprevir/pibrentasvir (G/P), sold under the brand names Mavyret and Maviret, is a fixed-dose combination medication used to treat hepatitis C. It contains glecaprevir and pibrentasvir. It works against all six types of hepatitis C. At twelve weeks following treatment between 81% and 100% of people have no evidence of hepatitis C. It is taken once a day by mouth with food.

Guibourtinidol is a flavan-3-ol. It can be found in the heartwood of Cassia abbreviata.

Trifluridine/tipiracil (FTD–TPI), sold under the brand name Lonsurf, is a fixed-dose combination medication that is used as a third- or fourth-line treatment of metastatic colorectal cancer or gastric cancer, after chemotherapy and targeted therapeutics have failed. It is a combination of two active pharmaceutical ingredients: trifluridine, a nucleoside analog, and tipiracil, a thymidine phosphorylase inhibitor. Tipiracil prevents rapid metabolism of trifluridine, increasing the bioavailability of trifluridine.

compound of lithium and polonium

Tetranitratoborate is an anion composed of boron with four nitrate groups. It has formula . It can form salts with large cations such as tetramethylammonium nitratoborate, or tetraethylammonium tetranitratoborate. The ion was first discovered by C. R. Guibert and M. D. Marshall in 1966 after failed attempts to make neutral (non-ionic) boron nitrate, , which has resisted attempts to make it; if it exists, it is unstable above −78 °C.

intermetallic chemical compound

Dihydroimidazol-2-ylidene is a hypothetical organic compound with formula C3H6N2. It would be a heterocyclic compound, formally derived from imidazolidine with two hydrogen atoms removed from carbon number 2, leaving two vacant chemical bonds — which makes it a carbene.

chemical compound

medical product used in surgery

chemical compound

Sitagliptin/metformin, sold under the brand name Janumet among others, is a fixed-dose combination anti-diabetic medication used to treat type 2 diabetes. It may be used in those whose blood sugar is not controlled with metformin and a sulfonylurea. It is taken by mouth.

Cabotegravir/rilpivirine, sold under the brand name Cabenuva, is a co-packaged antiretroviral medication for the treatment of HIV/AIDS. It contains cabotegravir and rilpivirine in a package with two separate injection vials.

chemical compound

Thioxoethenylidene, is a reactive heteroallene molecule with formula CCS.

Tocofersolan (INN; also known as tocophersolan, tocopherol polyethylene glycol succinate, or TPGS) is a synthetic water-soluble version of vitamin E. Natural forms of vitamin E are fat soluble, but not water-soluble. Tocofersolan is a polyethylene glycol (PEG) derivative of α-tocopherol succinate. The addition of PEG enables water solubility.

chemical compound

Dolutegravir/lamivudine/tenofovir (DTG/3TC/TDF) is a fixed-dose combination antiretroviral medication used to treat HIV/AIDS. It is a combination of dolutegravir, lamivudine, and tenofovir disoproxil. , it is listed by the World Health Organization (WHO) as the first line treatment for adults, with tenofovir/lamivudine/efavirenz as an alternative. It is taken by mouth.

Ombitasvir/paritaprevir/ritonavir, sold under the brand name Technivie among others, is a medication used to treat hepatitis C. It is a fixed-dose combination of ombitasvir, paritaprevir, and ritonavir. Specifically it is used together with dasabuvir or ribavirin for cases caused by hepatitis C virus genotype 1 or 4. Cure rates are around 95%. It is taken by mouth.

Thiopyrylium is a cation with the chemical formula C5H5S+. It is analogous to the pyrylium cation with the oxygen atom replaced by a sulfur atom.

pneumococcal vaccine and a conjugate vaccine

Bitartrate is an anion which is the conjugate base of tartaric acid. It may also refer to any salt or monoester of tartaric acid.

chemical compound

chemical compound

Columnidin is an orange red pigment, belonging to the 3-deoxyanthocyanidins found in red-flowered western-hemisphere gesneriad species such as episcias, columneas, sarmientas, and sinningias.

group of isomeric chemical compounds

diatomic radical chemical compound

thumb|252x252px|Redoxon Double Action Vitamin C standard tablets thumb|266x266px|Redoxon Vita Guard Ace+ Vitamin C standard tablets

V-01 is a protein subunit COVID-19 vaccine candidate developed by a subsidiary of Livzon Pharmaceutical Group Inc. __TOC__ == Preclinical studies ==

chemical compound

chemical compound

chemical compound

Methods for diagnosing tuberculosis

Eletefine is an isoquinoline alkaloid first isolated in 1998 from Cissampelos glaberrima. It is one of few known compounds containing the so-called stephaoxocane skeleton, alongside stephaoxocanidine, excentricine, and the stephalonganines.

experimental gene therapy for sickle cell disease and transfusion-dependent beta thalassemia

Autoinducer-2 (AI-2) is a furanosyl borate diester or tetrahydroxy furan (species dependent) that—as the name suggests—is an autoinducer, a member of a family of signaling molecules used in quorum sensing. AI-2 is one of only a few known biomolecules incorporating boron. First identified in the marine bacterium Vibrio harveyi, AI-2 is produced and recognized by many Gram-negative and Gram-positive bacteria. AI-2 arises by the reaction of 4,5-dihydroxy-2,3-pentanedione, which is produced enzymatically, with boric acid and is recognized by the two-component sensor kinase LuxPQ in Vibrionaceae.

EA-2012 is an extremely toxic organophosphate nerve agent. It is an extremely potent acetylcholinesterase inhibitor that is resistant to atropine and oxime treatment.

combination drug

Ethyldienolone, also known as 17α-methyl-19-nor-δ9-testosterone, as well as 17α-methylestra-4,9-dien-17β-ol-3-one, is synthetic, orally active anabolic-androgenic steroid (AAS) and a 17α-alkylated derivative of 19-nortestosterone. It is slightly more active than methyltestosterone when given orally. Ethyldienolone is closely related to dienolone and methyldienolone.

EA-2613 is an extremely toxic organophosphate nerve agent. It is an extremely potent acetylcholinesterase inhibitor that is resistant to atropine and oxime treatment.

chemical compound

EA-2054 is an extremely toxic organophosphate nerve agent. It is an extremely potent acetylcholinesterase inhibitor that is resistant to atropine and oxime treatment.