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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
Chemical formula of melatonin
Melatonin molecule formula and 3D diagram, over a night sky background with the moon and some stars. Digital illustration, 3D render
Metanephrine (metadrenaline) molecule. Metabolite of epinephrine that is biomarker for pheochromocytoma. 3D rendering. Atoms are represented as sphere
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.
Methylene diphenyl diisocyanate, MDI molecule. It is core component in polyurethane synthesis. Molecular model. 3D rendering. Illustration
Structural model of Benzene molecule
3d structure of Anthranilic acid, an aromatic acid the molecule of which consists of a substituted benzene ring, with two adjacent groups, a carboxylic acid and an amine.
Blue cloud with white polka dots on white background with shadow on the ground and studio settings.
Serotonin neurotransmitter molecule. Serotonin happiness hormone. Skeletal formula. Maintaining serotonin balance for mental well-being, emotional stability, satisfaction, good mood, and human health
Molecular structure on glass top desk with blue background.
Fisetin plant polyphenol molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
3d structure of l-glucose molecule.
Dopamine ( DA) hormone molecule. Molecular model. 3D rendering. 3D illustration
A molecular model of the hormone Melatonin.  An antioxidant and regulator of circadian rhythms, it may have use as a treatment for jet-lag.  Isolated on white.
Dopamine chemical molecule. It plays a role as a “reward center” 3d rendering
Organic shape 3d virus model isolated on black background, medical 3d rendering illustration
Love without pain - 300 mg aspirin, no headache no heartache! Computer rendered aspirin molecule. Color symbols - pink=carbon, red=oxygen, white=hydrogen
Sulforaphane cruciferous vegetable molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
Isolated on white. 3D Render.
Vanillin molecule. It is flavor compound. Molecular model. 3D rendering. Illustration
Isolated cholesterol molecule. Cholesterol is a small amphipathic lipid molecule called sterol 3d rendering
A model of a molecule of estriol, one of several estrogen steroid hormones produced by the sex glands in mammals.  Isolated on black.
Serotonin or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter. Its biological function is complex and multifaceted.
3D Illustration of Vitamin C Molecule
Dicyclohexyl phthalate (DCP) plasticizer molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
Molecule of Trinitrotoluene. Isolated on white. 3D Render.
Free Images: "bestof:Melatonin molecule spacefill.png Space-filling model of the melatonin molecule a hormone that controls the day and night cycle in animals Color code 505050"
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Melatonin molecule spacefill.png
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Tiratricol 3D spacefill.png
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