Chemical articles without CAS registry number

chemical compound

chemical compound

Hexanitrogen (diazide, hexaaza-1,2,4,5-tetraene) is an allotrope of nitrogen with the formula N6. The six nitrogen atoms are all covalently bonded in a single molecule: two azide units linked to each other. Its stability and structure were theorized in 2016 and its synthesis was reported in 2025. It is stable at cryogenic temperatures. The higher symmetry analogue, the benzene-like cyclic hexazine, has remained only theoretically hypothesized.

recreational drug with mixture of different psychoactive substances

medication used to treat bites by venomous snakes

Serdexmethylphenidate/dexmethylphenidate, sold under the brand name Azstarys, is a fixed-dose combination medication containing serdexmethylphenidate, a prodrug of dexmethylphenidate, and dexmethylphenidate, a d-threo enantiomer of racemic methylphenidate, which is used to treat attention deficit hyperactivity disorder (ADHD) in people aged six years and older.

Quizartinib, sold under the brand name Vanflyta, is an anti-cancer medication used for the treatment of acute myeloid leukemia.

AS-8112 is a synthetic compound that acts as a selective antagonist at the dopamine receptor subtypes D2 and D3, and the serotonin receptor 5-HT3. It has potent antiemetic effects in animal studies and has been investigated for potential medical use.

Norelgestromin/ethinylestradiol, sold under the brand name Ortho Evra among others, is a contraceptive patch containing the progestin norelgestromin and the estrogen ethinylestradiol.

chemical compound

EA-2098 is an extremely toxic organophosphate nerve agent. It is an extremely potent acetylcholinesterase inhibitor that is resistant to atropine and oxime treatment.

chemical compound

chemical compound

chemical compound

pneumococcal vaccine

Tramadol/paracetamol, also known as tramadol/acetaminophen and sold under the brand name Ultracet or Salpifar among others, is a fixed-dose combination medication used for the treatment of moderate to severe pain. It contains tramadol, as the hydrochloride, an analgesic; and paracetamol an analgesic. It is taken by mouth.

pharmaceutical drug formulation

Dibenzoylmorphine is an opioid analogue that is a derivative of morphine. It was developed in the early 1900s after first having been synthesised in 1875 in the UK by the CR Alders Wright organisation at Bayer, along with various other esters of morphine. It was never used medically, instead being widely sold as one of the first "designer drugs" for around five years following the introduction of the first international restrictions on the sale of heroin in 1925. It is described as being virtually identical to heroin and morphine in its effects, and consequently was itself banned international

maritime pine extract

chemical compound

chemical compound of uranium

chemical compound

medical treatment

chemical compound

Pentaoxidane is an inorganic compound of hydrogen and oxygen with the chemical formula . This is one of the most unstable hydrogen polyoxides.

Class of reactive intermediate species based on nitrogen and isoeletronic with carbene

Lisinopril/amlodipine, sold under the brand name Lisonorm among others, is a medication used to treat high blood pressure. It is a combination of lisinopril, an ACE inhibitor, with amlodipine, a calcium channel blocker. It may be used when blood pressure is not well controlled with each of the two agents alone. It is taken by mouth.

vaccines developed to protect against typhus

chemical compound

vaccine for cattle, sheep and goats used against brucellosis

chemical compound

Fatty acid

cocaine analogue

vaccine candidate against COVID-19

chemical compound

chemical compound

chemical compound

HGC019 is a mRNA and Self-amplifying mRNA (saRNA) based COVID-19 vaccine candidate being developed by Gennova Biopharmaceuticals and HDT Bio Corp. with active support from NIH under The Indo-US Vaccine Action Program (VAP) and Department of Biotechnology, India.

Decamethyldizincocene is an organozinc compound with the formula [Zn2(η5–C5Me5)2]. It is the first and an unusual example of a compound with a Zn-Zn bond. Decamethyldizincocene is a colorless crystalline solid that burns spontaneously in the presence of oxygen and reacts with water. It is stable at room temperature and especially soluble in diethyl ether, benzene, pentane, or tetrahydrofuran.

Triangulene (also known as Clar's hydrocarbon) is the smallest triplet-ground-state polybenzenoid. It exists as a biradical with the chemical formula . It was first hypothesized by Czech chemist Erich Clar in 1953. Its first confirmed synthesis was published in a February 2017 issue of Nature Nanotechnology, in a project led by researchers David Fox and Anish Mistry at the University of Warwick in collaboration with IBM. Other attempts by Japanese researchers have been successful only in making substituted triangulene derivatives.

chemical compound

Sofosbuvir/velpatasvir/voxilaprevir, sold under the brand name Vosevi, is a fixed-dose combination medication for the treatment of hepatitisC. It contains sofosbuvir, a hepatitis C virus (HCV) nucleotide analog NS5B polymerase inhibitor; velpatasvir, an HCV NS5A inhibitor; and voxilaprevir an HCV NS3/4A protease inhibitor.

vaccine candidate against COVID-19

pharmaceutical drug

pharmaceutical compound

chemical compound

chemical compound

NS-2359 (GSK-372475) is a serotonin-norepinephrine-dopamine reuptake inhibitor. It was under development by GlaxoSmithKline (GSK) as an antidepressant, but was discontinued in 2009 when phase II clinical trials showed the drug was not effective and not well tolerated. The results did not support further effort by the company. NS-2359 was also in clinical trials for the treatment of ADHD, phase II having been completed in 2007. A phase I clinical trial exploring the effect of NS-2359 on cocaine-dependent individuals was completed in 2002.

LR-5182 is a stimulant drug which acts as a norepinephrine–dopamine reuptake inhibitor, structurally related to the better known drug fencamfamine. It was developed by the pharmaceutical company Eli Lilly in the 1970s, and researched for potential use as an antidepressant, although never marketed. LR-5182 has two stereoisomers, both of which are active, although one isomer blocks reuptake of only dopamine and noradrenaline, while the other blocks reuptake of serotonin as well.

Calcium chloroaluminate formed by reaction of AFm hydrates with chloride ions

chemical compound

chemical compound

chemical compound

Penta-graphene is a hypothetical carbon allotrope composed entirely of carbon pentagons and resembling the Cairo pentagonal tiling. Penta-graphene was proposed in 2014 on the basis of analyses and simulations. Further calculations predicted that it is unstable in its pure form, but can be stabilized by hydrogenation. Due to its atomic configuration, penta-graphene has an unusually negative Poisson’s ratio and very high ideal strength believed to exceed that of a similar material, graphene.

Dolutegravir/rilpivirine, sold under the brand name Juluca, is a fixed-dose combination antiretroviral medication for the treatment of HIV/AIDS. It contains the medicines dolutegravir and rilpivirine. It is taken orally (by mouth).

Bamlanivimab/etesevimab is a combination of two monoclonal antibodies, bamlanivimab and etesevimab, administered together via intravenous infusion as a treatment for COVID-19. Both types of antibody target the surface spike protein of SARS‑CoV‑2.

experimental vaccine targeting SARS-CoV-2

Curzerene is a volatile, aromatic terpenoid found in many herbs and spices, such as Curcuma zeodaria. It is a bioactive isolate of Caribbean corals and is also found in myrrh. More specifically it has been found to make up a significant portion - 12.97% - of the smoke produced from burning Commiphora myrrha oleo gum resin. It is also a major component of myrrh oil, which has been shown in vitro to possess anti-inflammatory properties at sub-toxic by inhibiting the production of the inflammatory cytokine IL-6 by human gingival fibroblasts. Anecdotal evidence exists to support the anti-inflammat

chemical compound

chemical compound