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

nanotechnology and abstract graphene structures

Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.

A molecular model of the plasticizer Dibutyl Phthalate or DBP. As a plasticizer it has been used in many products including adhesives, textiles, cosmetics and children's toys. There are now concerns about its health effects, particularly its effect on male health and behaviour. Isolated on white.

Dopamine ( DA) hormone molecule. Molecular model. 3D rendering. 3D illustration

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

Hospital wastewater contain high abundances of antibiotic resistance genes compared to municipal wastewater. The antibiotic-resistant organisms originate from hospital patients.

Dicyclohexyl phthalate (DCP) plasticizer molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.

Calcium Capsule with Ca Element. Dietary Supplements. 3D Render

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

3d Render Transparent Molecule on Gradient Green Background, Science and Medicine Concept, (Depth Of Field)

Highlight on chemical element Barium in periodic table of elements. 3D rendering

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.

Microcrystalline wax with chemical formula on white laboratory table.

Halofantrine is a drug used to treat malaria. Halofantrine's structure contains a substituted phenanthrene, and is related to the antimalarial drugs quinine and lumefantrine. 3d illustration

stx2a is a subtype of Shiga toxin-producing E. coli (STEC) linked to Hemolytic Uremic Syndrome (HUS), a severe condition impacting kidney function and blood clotting. STEC poses a significant risk of foodborne illness and can spread within communities including family members.

Anthracene molecule. It is polycyclic aromatic hydrocarbon PAH. Molecular model. 3D rendering. Illustration

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Decitabine is a medication for the treatment of myelodysplastic syndromes, a class of conditions where certain blood cells are dysfunctional.

Rendered Remdesivir molecule in 3D, an experimental drug from Gilead, used to cure the first case of 2019-nCoV in the United States (for a patient at Seattle, Washington). The model showed accurate atom connection and stereochemistry, which was professionally checked. Color symbols - light blue=carbon, red=oxygen, blue=nitrogen, white=hydrogen, green=phosphorus

potassium cyanide in bottle , chemical in the laboratory and industry, Chemical used in the analysis

Food supplement vitamin in tablet form - Vitamin B1 Thiamine

Tafamidis is a medication used to delay loss of peripheral nerve function in adults with familial amyloid polyneuropathy. 3d illustration

Water (Molecular formula: H2O) is a clear, odorless, tasteless liquid that is essential for most animal and plant life. Chemical structure model: Ball and Stick. 3D illustration.

Triacetin, glycerin triacetate molecule. It is triglyceride, triester of glycerol, food additive with E number E1518. Molecular model. 3D rendering. 3D illustration

Close-up shot of a petri dish for checking an antibiotic in the laboratory.

Free Images: "bestof:Methylatropine.png chemical structure of methylatropine Own 16 37 27 October 2008 UTC Edgar181 Tropanes Atropine Quaternary ammonium compounds"

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