Bases (chemistry) (25)
Cyclic compounds (25)
Six-membered rings (17)
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Aromatic ketones (1)
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Organic acids (1)
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Pyridine (110-86-1, 7291-22-7)
pyridine hydrochloride · pyridine sulfate · pyridine nitrate
Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. The pyridine ring occurs in many important compounds, including azines and the vitamins niacin and pyridoxine.
Bortezomib (BAN, INN and USAN; marketed as Velcade by Millennium Pharmaceuticals; Neomib by Getwell and Bortecad by Cadila Healthcare) is an anti-cancer drug and the first therapeutic proteasome inhibitor to be used in humans. Proteasomes are cellular complexes that break down proteins. In some cancers, the proteins that normally kill cancer cells are broken down too quickly.
melamine phosphate · melamine sulfate (1:2) · melamine sulfite (1:1)
Melamine ( listen) is an organic base and a trimer of cyanamide, with a 1,3,5-triazine skeleton. Like cyanamide, it contains 67% nitrogen by mass and, if mixed with resins, has fire retardant properties due to its release of nitrogen gas when burned or charred, and has several other industrial uses. Melamine is also a metabolite of cyromazine, a pesticide.
Pyrazinamide is a medication used to treat tuberculosis. For active tuberculosis it is often used together with rifampin, isoniazid, and either streptomycin or ethambutol. It is not generally recommended for the treatment of latent tuberculosis.
Zinophos · O,O-diethyl O-2-pyrazinylphosphorothioate · thionacine
Thionazin is a chemical compound used in nematicides.
Benzothiazole is an aromatic heterocyclic compound with the chemical formula C 7H 5NS. It is colorless, slightly viscous liquid. Although the parent compound, benzothiazole is not widely used, many of its derivatives are found in commercial products or in nature.
imidazolium chloride · imidazole acetate · imidazole sodium
Imidazole is an organic compound with the formula C3N2H4. It is a white or colourless solid that is soluble in water, producing a mildly alkaline solution. In chemistry, it is an aromatic heterocycle, classified as a diazole, and having non-adjacent nitrogen atoms.
Thiazole, or 1,3-thiazole, is a heterocyclic compound that contains both sulfur and nitrogen; the term 'thiazole' also refers to a large family of derivatives. Thiazole itself is a pale yellow liquid with a pyridine-like odor and the molecular formula C3H3NS. The thiazole ring is notable as a component of the vitamin thiamine (B1).
PYRIMIDINE (289-95-2, 25247-63-6)
Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. One of the three diazines (six-membered heterocyclics with two nitrogen atoms in the ring), it has the nitrogen atoms at positions 1 and 3 in the ring. The other diazines are pyrazine (nitrogen atoms at the 1 and 4 positions) and pyridazine (nitrogen atoms at the 1 and 2 positions).
Pyrazine is a heterocyclic aromatic organic compound with the chemical formula C4H4N2. Pyrazine is a symmetrical molecule with point group D2h. Pyrazine is less basic than pyridine, pyridazine and pyrimidine.
2-methoxy-3-isobutylpyrazine · 3-isobutyl-2-methoxypyrazine
3-Isobutyl-2-methoxypyrazine (2-isobutyl-3-methoxypyrazine also known as Grindstaff pyrazine) is a methoxypyrazine that is very similar to isopropyl methoxy pyrazine except that the alkyl side-group contains an isobutyl group attached to the carbon alpha to the methoxy sidegroup instead of an isopropyl side-group at that same carbon position.
tetramethylpyrazine · Liqustrazine · chuanxiongzine
Tetramethylpyrazine, also known as ligustrazine, is a chemical compound found in natto and in fermented cocoa beans. When purified, tetramethylpyrazine is a colorless solid. It is classifed as an alkylpyrazine.
5-(2-pyrazinyl)-4-methyl-1,2-dithiol-3-thione · 4-methyl-5-pyrazinyl-3H-1,2-dithiole-3-thione · RP 35972
Oltipraz is an organosulfur compound belonging to the dithiolethione class. It acts as a schistosomicide and has been shown in rodent models to inhibit the formation of cancers in the bladder, blood, colon, kidney, liver, lung, pancreas, stomach, and trachea, skin, and mammary tissue. Clinical trials of oltipraz have failed to demonstrate efficacy and have shown significant side effects, including neurotoxicity and gastrointestinal toxicity.
2-ISOPROPYL-3-METHOXYPYRAZINE (25773-40-4, 93905-03-4)
3-isopropyl-2-methoxypyrazine · 2-methoxy-3-isopropylpyrazine
Isopropyl methoxy pyrazine (IPMP) is a methoxypyrazine, a class of chemical compounds that produce odors. The odor is rather undesirable and is produced by the Asian lady beetle or by the actinomycete Streptomyces sp. It can be detected by human taste at concentrations of as low as 2 nanograms per litre.
Pyrazine-2-carboxylic acid (98-97-5)
pyrazinoic acid · pyrazinoate
Pyrazinoic acid is a pyrazinamide metabolite.
22047-25-2 · 1-pyrazin-2-ylethanone
Acetylpyrazine is an organic compound with the chemical formula C 6H 6N 2O. It is a yellow-brown powder at room temperature. Chemically, acetylpyrazine is a pyrazine and a ketone.
Olbemox · 5-methylpyrazine-2-carboxylic acid 4-oxide · Olbetam
Acipimox (trade name Olbetam in Europe) is a niacin derivative used as a lipid-lowering agent. It reduces triglyceride levels and increases HDL cholesterol. It may have less marked adverse effects than niacin, although it is unclear whether the recommended dose is as effective as standard doses of niacin.
morphazinamide monohydrochloride · morphazinamide · morfazinamide
Morinamide (or morphazinamide, or morinamid) is a drug used in the treatment of tuberculosis. It behaves as a prodrug for Pyrazinamide.
Benzoxazole is an aromatic organic compound with a molecular formula C7H5NO, a benzene-fused oxazole ring structure, and an odor similar to pyridine. Although benzoxazole itself is of little practical value, many derivatives of benzoxazoles are commercially important. Being a heterocyclic compound, benzoxazole finds use in research as a starting material for the synthesis of larger, usually bioactive structures.
1,2-Benzisoxazole is an aromatic organic compound with a molecular formula C7H5NO containing a benzene-fused isoxazole ring structure. The compound itself has no common applications; however, functionalized benzisoxazoles and benzisoxazoyls have a variety of uses, including pharmaceutical drugs such as some antipsychotics (including risperidone, paliperidone, ocaperidone, and iloperidone) and the anticonvulsant zonisamide. Its aromaticity makes it relatively stable; however, it is only weakly basic.