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

Folic acid, folate molecule. It is known as vitamin B9. Molecular model. 3D rendering. Illustration

A stethoscope on a printout of a cardiogram Chart (ECG)

After dopamine binding, the dopamine receptor changes his shape and binds the inactive G protein.The G protein expels its GDP molecule replacing it by GTP. and falls into two pieces. The Galpha subunit binds to and activates the enzyme adenylyl cyclase, which produces then cyclic AMP spreading a signal through the cell.

3D cartoon and Gaussian surface models, PDB 6gu2, white background

Molecule with water background, 3d rendering. Digital drawing.

3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen

Chemical formula of Testosterone on a blackboard

A stethoscope rests on top of a Medicare insurance card

Phenol in old glass bottle on a sheet of paper with chemical formulae (selective focus)

3D realistically coloured hexagonal shapes of connected spheres, background with copy space. Futuristic illustration design template for scientific presentation. Molecular business, science, teamwork concept.

Yohimbine(quebrachine), is an indole alkaloid. C21H26N2O3. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.

Chemical formula of Bisphenol A (BPA) with black pen. Close-up.

Periodic system. Closeup of some elements

Hyaluronan, hyaluronic acid, HA, hyaluronate molecule, short fragment. Molecular model. 3D rendering. Illustration

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3d rendering of benzene molecules conjugated gold (Au) nanoparticles (NPs) on the black background

A molecular model of the flavonoid Quercetin. An antioxidant and anti-inflamatory, it is used as a nutritional suplement. It is commonly found in many fruits and vegetables and is a significant chemical component of tea. Isolated on white.

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

Photography of Social connection concept ,drawn with pen on note pad

Stethoscope resting on ecg chart readout

Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases.

Microcrystalline wax with chemical formula on white laboratory table.

Molecular model of Adenosine triphosphate, or Adenosine-5'-triphosphate (ATP)

Free Images: "bestof:Sterol synthesis pt.svg Simplified schematic diagram of w sterol biosynthesis Several intermediates have been omitted <br>Created using http //www acdlabs com/..."

Scenic view of several pronghorn grazing in forefront with hills.jpg

Beta sheet bonding antiparallel-color.svg