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A molecular model of Bisphenol A or BPA. It is a common building block in the production of many epoxy resins and plastics including polycarbonate plastic. As such it is present in a huge range of food packaging and household products. There are now concerns about its health effects, particularly its effect on children, infants and fetuses. Isolated on white.

Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration

The study of plant tissues under the microscope in the laboratory.

plant Pumpkin ovary under light mircoscope with white background

Melatonin is a hormone, released primarily by the pineal gland, that regulates the sleep–wake cycle. 3D ball-and-stick model, white background

Aerial view of loyster farm by Ardara, County Donegal - Ireland.

Neohalicholactone is unusual fatty acid metabolites having a cyclopropane ring and a nine-membered lactone. 3d illustration

A ball and stick model of N,N-Diethyl-meta-toluamide, commonly known as DEET. The most common active ingredient in insect repellents. Isolated on white.

Wild plants and herbs growing in the mountains of the Caucasus. Rare flora, medicinal wild plants. Specially protected area of the reserve

Glucosamine (C6H13NO5) is an amino sugar. treatment for osteoarthritis. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.

Colored plant cells with damages caused by a parasitic animal under the microscope.

Silver thistle (Carlina acaulis) Close-up of a closed flower

Allium flower macro close up for use as a background or plant identifier.

Tryptophan or Trp is an alpha-amino acid that is used in the biosynthesis of proteins, 3d illustration

$Model of DNA Base Pair adenine (A) and thymine (T)\n\nFind more molecules in the Lightbox [url=http://www.istockphoto.com/search/lightbox/7500191][i] 'World of Molecules'[/i][/url], or contact me on customized design/rendering of any molecules in 3D (see some examples below). \n\n[img]http://www.drugmodel.com/360/superglassy900.jpg[/img] \n[img]http://www.drugmodel.com/360/capsule900.jpg[/img] \n[img]http://www.drugmodel.com/360/glassy900.jpg[/img] \n[img]http://www.drugmodel.com/360/heart900.jpg[/img] \n[img]http://www.drugmodel.com/360/viruskiller900.jpg[/img] \n[img]http://www.drugmodel.com/360/mesh900.jpg[/img] \n[img]http://www.drugmodel.com/360/cartoon900.jpg[/img] \n[img]http://www.drugmodel.com/360/photo900.jpg[/img] \n[img]http://www.drugmodel.com/360/ovoid900.jpg[/img] \n[img]http://www.drugmodel.com/360/swirlcone900.jpg[/img] \n[img]http://www.drugmodel.com/360/super900.jpg[/img] \n[img]http://www.drugmodel.com/360/glowing900.jpg[/img]$

Blastomycosis is a fungal infection caused by inhaling Blastomyces dermatitidis spores. If it involves only the lungs, it is called pulmonary blastomycosis. Only about half of people with the disease have symptoms, which can include fever, cough, night sweats, muscle pains, weight loss, chest pain, and feeling tired.

Clover, also called trefoil, are plants of the genus Trifolium, consisting of about 300 species of flowering plants in the legume family Fabaceae originating in Europe.

Overhead shot of an industrial facility featuring massive ventilation fans, intricate piping, and processing units.

Microscope photo of a sambucus stem with parenchyma cells.

Milk thistle herb before blooming. Close up.

Macrophotography, closeup of a small wild flower

Free Images: "bestof:Menabitan.svg Chemical structure of menabitan SP-204 Own 15 15 10 May 2012 UTC Ed Edgar181 Cannabinoids Piperidines Alkyne derivatives"

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