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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
3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen
3d rendering of benzene molecules conjugated gold (Au) nanoparticles (NPs) on the black background
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.
Chemical formula of Cortisol
Structural model of DEHP on the blackboard.
Many small, white flowers of the Common Yarrow (Achillea millefolium), comprising a single inflorescence, growing in the margins of an agricultural field in central Scotland. The species is native to many areas in the northern hemisphere and has been used by many peoples both to feed livestock and because its essential oils contain many medicinal properties and include the painkiller aspirin.
Glucosamine (C6H13NO5) is an amino sugar. treatment for osteoarthritis. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.
Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases.
Hydrangea paniculata in London, England
Paclitaxel or Taxol is a chemotherapy medication used to treat a number of types of cancer. 3d illustration
Small, rather slender Tree, with smooth silvery-gray Branches. Leaves pinnate, with 5-7 pairs of oblong toothed leaflets, green, hairy beneath. Flowers 8-10mm, in domes clusters.\nHabitat: Woodland, Hedgerows, Moors and Mountains to 2400m, mainly on light Soils. \nFlowering Season: May-June.\nDistribution: Western Europe, except the far North.\n\nThis is a common Species in the Netherlands. Also planted in Parks.
3d Illustration of Glucose molecule
Structural model of Benzene molecule
Molecular structure in paper cut style. Horizontal banner with eco paper texture. Paper cardboard background. Recycled carton material. Copy space for text. Mock up template
Pictured here is the enchanting Queen Anne's Lace, a mesmerizing white flower head adorned with delicate, intricate small blooms. Its allure deepens as a distinctive dark red dot graces its center, adding an air of mystery to this botanical wonder. The backdrop features more lovely flowers and unopened buds nestled amidst lush greenery, creating a captivating natural tapestry. In some cultures, Queen Anne's Lace is associated with protection and used as an herbal remedy for various ailments.
Molecular structure of Acetylcysteine(also known as N-acetylcysteine or NAC). C5H9NO3S. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.
White Elder Flower
Opening white flowers of Sorbus aria in May
Inside protein molecule
Rubidium, Strontium on the periodic table of the elements on black blackground,history of chemical elements, represents the atomic number and symbol.,3d rendering
White flowers close-up. (shallow depth of field)
Benzaldehyde, benzoic aldehyde molecule. It is simplest aromatic aldehyde with odor of bitter almond. Molecular model. 3D rendering. Illustration
Allium flower macro close up for use as a background or plant identifier.
Garden phlox
Chemical formula of Aldosterone
Acenaphthylene is a polycyclic aromatic hydrocarbon. The molecule resembles naphthalene. It occurs in coal tar. 3d illustration
Close-up image of a hydrangea plant in the garden
Yohimbine(quebrachine), is an indole alkaloid. C21H26N2O3. Chemical structure model: Ball and Stick + Balls + Space-Filling. 3D illustration.
Orlaya grandiflora, also called White Lace flower, is a species of flowering plant in the family Apiaceae, native to Mediterranean Europe. It bears lovely fern-like foliage and clusters of pure white flowers, which appear over a long period in summer, often lasting until the first frost.
Free Images: "bestof:Lobeline structure.svg Chemical structure of lobeline 8 10-diphenyllobelionol; inflatine Own 14 04 4 November 2011 UTC Ed Edgar181 Piperidine alkaloids Ketones"
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