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Male hand hold yellow liquid in test tube. Conveyor line production household cleaning products detergents help cleaning destruction stains pests urine poison antidote vaccine concept.
Chemical formula of Cortisol
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
Chemical laboratory equipment
Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.
A ball-and-stick molecular model of the hormone Orexin, also known as Hypocretin.  Orexin is involved in the regulation of the sleep/wake cycle and it stimulates apetite, wakefulness and energy expenditure. It has been linked with Alzheimer's disease.  Isolated on white.
Close-up view of Electric Magnetic stirrer equipment to stirr solutions in chemical or pharma laboratory
Test tubes organized in blue rack in a laboratory, with a scientist wearing protective gloves working in the background.
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 Progesterone
Glucosamine (C6H13NO5) is an amino sugar. treatment for osteoarthritis. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.
Interior of modern science laboratory with no people
DNA molecule in test tubes and microscope in laboratory. Chemical and biological and scientific research concept
3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen
Expert analyzes stuffed meat contaminated by bacterium of listeria in laboratory, sprout caused in Spain
3d Render Transparent Molecule on Gradient Green Background, Science and Medicine Concept, (Depth Of Field)
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
Medium shot of a male scientist in a laboratory.  He is standing on ladders while reaching into a Nuclear Magnetic Resonance (NMR) spectroscopy that is being used to research metabolism and digestion. The man is wearing a protective white lab coat.\n\nVideos are available similar to this scenario.
Microcrystalline wax with chemical formula on white laboratory table.
blackboard full of chemical formula
Antimicrobial susceptibility testing in petri dish. Microbiologist check Antibiotic resistance of bacteria
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.
Microscope with many test tubes and a plastic molecule. Laboratory research
Reagent tube in chemical laboratory
Laboratory of Biological Research. The interior of a modern scientific laboratory.
Details of the periodic table that shows different chemical elements samples.
Plastic raw material in granules against the background of Chemical Laboratory and reagents. Polypropylene, Ethylene, Polypropylene research in laboratory conditions
Chemical formula of Aldosterone
methyl alcohol, a flammable chemical in a laboratory or industry
Studio shot of microscope with organized test tubes in a rack.
Free Images: "bestof:Tienoxolol.svg Chemical structure of tienoxolol Own 00 31 5 January 2014 UTC Ed Edgar181 Beta blockers Thiophenes Ethyl esters Tert-butyl compounds"
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