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Polycyclic organic compounds, www.sigmaaldrich.com, Cyclic compounds

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CHRYSENE (65996-93-2, 50-32-8, 218-01-9)  
Chrysene is a polycyclic aromatic hydrocarbon (PAH) with the molecular formula C 18H 12 that consists of four fused benzene rings. It is a natural constituent of coal tar, from which it was first isolated and characterized. It is also found in creosote at levels of 0.5-6 mg/kg.
Benz[a]anthracene (56-55-3)  
benzanthracene  ·  benzo(b)phenanthrene  ·  1,2-benzanthracene
Benz[a]anthracene or benzo[a]anthracene is a polycyclic aromatic hydrocarbon with the chemical formula C18H12. In February 2014, NASA announced a greatly upgraded database for tracking polycyclic aromatic hydrocarbons (PAHs), including benz[a]anthracene, in the universe. According to scientists, more than 20% of the carbon in the universe may be associated with PAHs, possible starting materials for the formation of life.
methenamine (100-97-0)  
Hexamethylenetetramine  ·  Urotropin  ·  Methenamine Silver
ACENAPHTHENE (83-32-9)  
Acenaphthene is a polycyclic aromatic hydrocarbon (PAH) consisting of naphthalene with an ethylene bridge connecting positions 1 and 8. It is a colourless solid. Coal tar consists of about 0.3% of this compound.
FLUORANTHENE (206-44-0, 76774-50-0)  
Fluoranthene is a polycyclic aromatic hydrocarbon (PAH). The molecule can be viewed as the fusion of naphthalene and benzene unit connected by a five-membered ring. Although samples are often pale yellow, the compound is colorless.
Hexamethylenetetramine (100-97-0)  
Hexamethylenetetramine or methenamine is a heterocyclic organic compound with the formula (CH2)6N4. This white crystalline compound is highly soluble in water and polar organic solvents. It has a cage-like structure similar to adamantane.
CYTISINE (485-35-8)  
Tsitizin  ·  cytisine hydrochloride, hydrate  ·  cytisine hydrochloride
Cytisine, also known as baptitoxine and sophorine, is an alkaloid that occurs naturally in several plant genera, such as Laburnum and Cytisus of the family Fabaceae. It has been used medically to help with smoking cessation. Its molecular structure has some similarity to that of nicotine and it has similar pharmacological effects.
podophyllotoxin (4354-76-1, 477-47-4, 518-28-5)  
Podofilox  ·  Epipodophyllotoxin  ·  Condylox
Podophyllotoxin (PPT), also known as podofilox, is a medical cream that is used to treat genital warts and molluscum contagiosum. It is not recommended in HPV infections without external warts. It can be applied either by a healthcare provider or the person themselves.
vincamine (1617-90-9)  
Vincapront  ·  Devincan  ·  Pervincamine
Vincamine is a monoterpenoid indole alkaloid found in the leaves of Vinca minor (lesser periwinkle), comprising about 25-65% of the indole alkaloids found in Vinca minor by weight. It can be synthesized from related alkaloids.
Isoborneol (10334-13-1, 124-76-5, 507-70-0)  
borneol  ·  isoborneol, (1R-endo)-isomer  ·  isoborneol, (1S-endo)-isomer
2,5-Norbornadiene (121-46-0)  
bicyclo(2.2.1)hepta-2,5-diene
Norbornadiene is a bicyclic hydrocarbon and an organic compound. Norbornadiene is of interest as a metal-binding ligand, whose complexes are useful for homogeneous catalysis. It has been intensively studied owing to its high reactivity and distinctive structural property of being a diene that cannot isomerize (isomers would be anti-Bredt olefins).
1,2-Benzofluorene (30777-18-5, 238-84-6)  
11H-benzo(a)fluorene  ·  benzo(a)fluorene  ·  chrysofluorene
Benzo[a]fluorene (IUPAC name, 11H-benzo[a]fluorene) is a polycyclic aromatic hydrocarbon (PAH). It is currently listed as a Group 3 carcinogen by the IARC.
Acenaphthenequinone (82-86-0)  
Acenaphthoquinone is a quinone derived from acenaphthene. It is insoluble in water, but soluble in alcohol. It is used as an intermediate for the manufacturing of dyes, pharmaceuticals and pesticides.
Benzo[c]phenanthrene (195-19-7)  
benzo(c)phenanthrene  ·  3,4-benzophenanthrene
Benzo[c]phenanthrene is a polycyclic aromatic hydrocarbon with the chemical formula C18H12. It is a white solid that is soluble in nonpolar organic solvents. It is a nonplanar molecule consisting of the fusion of four fused benzene rings.
Matrine (519-02-8)  
Matrine is an alkaloid found in plants from the Sophora genus. It has a variety of pharmacological effects, including anti-cancer effects, as well as κ-opioid and μ-opioid receptor agonism. Matrine possesses strong antitumor activities in vitro and in vivo.
Troeger's base (529-81-7)  
Tröger's base is an organic compound with the formula (CH3C6H4NCH2)2CH2. It is a white solid that is soluble in polar organic solvents. It is a diamine, which exhibits chirality due to the presence of two bridgehead stereogenic nitrogen atoms.
TRIPHENYLENE (217-59-4)  
9,10-benzophenanthrene
In chemistry, the organic compound triphenylene is a flat polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings. Triphenylene can be isolated from coal tar, but it is also made synthetically using benzyne chemistry, as it is a trimer of benzyne. One molecule of triphenylene has delocalized 18-π-electron systems based on a planar structure.
Naphthacene (92-24-0)  
tetracene  ·  rubene  ·  2,3-benzanthrene
Tetracene, also called naphthacene, is a polycyclic aromatic hydrocarbon. It has the appearance of a pale orange powder. Tetracene is the four-ringed member of the series of acenes, the previous one being anthracene (tricene) and the next one being pentacene.
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