Pyridinium compounds

coenzyme NAD in any of its oxidation states

coenzyme acting as an electron carrier in biochemical redox reactions (oxidation state unspecified), any of NADP+, NADPH, or NADP zwitterion

Ceftazidime, sold under the brand name Fortaz among others, is a third-generation cephalosporin antibiotic useful for the treatment of a number of bacterial infections. Specifically it is used for joint infections, meningitis, pneumonia, sepsis, urinary tract infections, malignant otitis externa, Pseudomonas aeruginosa infection, and vibrio infection. It is given by injection into a vein, muscle, or eye.

Paraquat (trivial name; ), or '''N,N′-dimethyl-4,4′-bipyridinium dichloride (systematic name), also known as methyl viologen''', is a toxic organic compound with the chemical formula [(C6H7N)2]Cl2. It is classified as a viologen, a family of redox-active heterocycles of similar structure. It is one of the most widely used herbicides worldwide. It is quick-acting and non-selective, killing green plant tissue on contact.

Pyridostigmine is a medication used to treat myasthenia gravis and underactive bladder. It is also used together with atropine to end the effects of neuromuscular blocking medication of the non-depolarizing type. It is also used off-label to treat some forms of Postural orthostatic tachycardia syndrome. It is typically given by mouth but can also be used by injection. When administrated orally the effects generally begin within 15–30 minutes and last up to 4 hours.

chemical compound

chemical compound

Desmosine is an amino acid found uniquely in elastin, a protein found in connective tissue such as skin, lungs, and elastic arteries.

chemical compound

chemical compound

chemical compound

'Pyridine-N-oxide' is the heterocyclic compound with the formula C5H5NO. This colourless, hygroscopic solid is the product of the oxidation of pyridine. Its synthesis was first reported by Jakob Meisenheimer, who used peroxybenzoic acid as the oxidant. The compound is used infrequently as an oxidizing reagent in organic synthesis.

Olympiadane is a mechanically interlocked molecule composed of five interlocking macrocycles that resembles the Olympic rings. The molecule is a linear pentacatenane or a [5]catenane. It was synthesized and named by Fraser Stoddart and coworkers in 1994. The molecule was designed without any practical use in mind, although other catenanes may have possible application to the construction of a molecular computer.

MPP+ (1-methyl-4-phenylpyridinium) or cyperquat is a positively charged organic molecule with the chemical formula C12H12N+. It is a monoaminergic neurotoxin that acts by interfering with oxidative phosphorylation in mitochondria by inhibiting complex I, leading to the depletion of ATP and eventual cell death.

Pyridinium refers to the charged cation of pyridine. The simplest being the conjugate acid . Many related cations are known involving substituted pyridines, e.g. picolines, lutidines, collidines. They are prepared by treating pyridine with acids.

Cephaloridine (or cefaloridine) is a first-generation semisynthetic derivative of antibiotic cephalosporin C. It is a Beta lactam antibiotic, like penicillin. Its chemical structure contains cephems,carboxyl groups and a pyridinium ring.

Distigmine (as distigmine bromide) is a parasympathomimetic. Distigmine is similar to pyridostigmine and neostigmine but has a longer duration of action. It is available as tablets on prescription only. It is commonly used to treat various conditions, including myasthenia gravis and underactive bladder. Distigmine has a greater risk of causing cholinergic crisis because of accumulation of the drug being more likely than with neostigmine or pyridostigmine and so distigmine is rarely used as a treatment for myasthenia gravis, unlike pyridostigmine and neostigmine.

Cefalonium (INN) is a first-generation cephalosporin antibiotic.

chemical compound

chemical compound

Amprolium is the organic compound sold as a coccidiostat used in poultry. It has many International Nonproprietary Names. __TOC__

Cefpimizole (INN) is a third-generation cephalosporin antibiotic.

chemical compound

chemical compound

chemical compound

chemical compound

'4-Nitropyridine-N-oxide' is a chemical compound. It is highly toxic when consumed orally.

Methylpyridinium is an ion with the formula . It is the N-methylated derivative of pyridine. It confers no color to its salts. The ion is classified as a quaternary ammonium ion.

1-Methylnicotinamide (1-MNA, trigonellamide) is a prototypic organic cation. 1-Methylnicotinamide is the methylated amide of nicotinamide (niacinamide, vitamin B3).

chemical compound

Deoxypyridinoline, also called D-Pyrilinks, Pyrilinks-D, or deoxyPYD, is one of two pyridinium cross-links that provide structural stiffness to type I collagen found in bones. It is excreted unmetabolized in urine and is a specific marker of bone resorption and osteoclastic activity. It is measured in urine tests and is used along with other bone markers such as alkaline phosphatase, osteocalcin, and N-terminal telopeptide to diagnose bone diseases such as postmenopausal osteoporosis, bone metastasis, and Paget's disease, furthermore, it has been useful in monitoring treatments that contain bo

chemical compound

chemical compound

Arimoclomol, sold under the brand name Miplyffa, is a medication used for the treatment of Niemann–Pick disease type C. It is taken by mouth.