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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 Cortisol
Science background with molecule or atom
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.
Microcrystalline wax with chemical formula on white laboratory table.
blackboard full of chemical formula
Abstarct Atom or molecular nanotechnology structure
3D rendering of microscopic particles and bubbles
Phenol in old glass bottle on a sheet of paper with chemical formulae (selective focus)
3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen
Molecular structure of Acetylcysteine(also known as N-acetylcysteine or NAC). C5H9NO3S. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.
A Dunning's miner bee pollinates a Choke cherry blossom, (Prunus virginiana) in the spring.
Chemical formula of Testosterone on a blackboard
Chemical formula of Progesterone
Folic acid, folate molecule. It is known as vitamin B9. Molecular model. 3D rendering. Illustration
Candida is the most common fungal pathogen, with Candida albicans and Candida tropicalis accounting for 90% of the infections.
Chemical formula of Progesterone. Close-up.
Green bottle fly (Lucilia sericata) on flowering plant
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
Happy with and for the endangered bee
Glucosamine (C6H13NO5) is an amino sugar. treatment for osteoarthritis. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.
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.
Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases.
Australian native blue-banded bee collecting pollen from an Agapanthus flower
Structural model of Vitamin D3 molecule on the blackboard.Structural model of Vitamin D3 molecule on the blackboard.
Chemical formula of Aldosterone
3d rendering of benzene molecules conjugated gold (Au) nanoparticles (NPs) on the black background
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
Yohimbine(quebrachine), is an indole alkaloid. C21H26N2O3. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.
Structural model of Benzene molecule
Free Images: "bestof:Apicidin.svg Chemical structure of apicidin Own 22 56 22 February 2014 UTC Ed Edgar181 Histone deacetylase inhibitors Macrocyclic compounds Indoles"
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