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Triphenylmethyl radical is a persistent radical and the first radical ever described in organic chemistry
Cut or torn paper background textured isolated on black.
Periodic table, structural formula of chemical compound and laboratory glassware, double exposure. Toned in blue and yellow
blue bubble with h2 text
Simulate Shape of covalent molecules on a periodic table background. Soft and selective focus.
Microscopic image of blood
Epithelial Cells in urine sediment.
plant Zea Stem C.S. under light mircoscope with white background
Isolated trioctyl phosphate molecule on white. 3d illustration
Golden X Chromosome,Human genome concept.
Measles morbillivirus, formerly called measles virus, is a single-stranded, negative-sense, enveloped, non-segmented RNA virus of the genus Morbillivirus within the family Paramyxoviridae. It is the cause of measles. 3D surface model, white background
Close-up of three-dimensional rusty wire mesh alphabet letter P on white background.
the phosphorus is stored under water
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
Molecule structure and periodic table of elements. Digital illustration, 3D rendering.
Geometrical interplay between pyramid and sphere: 3D digital illustration
Molecular model on periodic table of chemical elements
Squash preparation of  onion root tip cells stained to reveal chromosomes,  Bright field illumination, light microscopy.  This image was taken with the X40 objective lens.  Depth of focus is extremely low at this magnification.  Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced.  The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 7upt white background.
Gold Lowercase Letter x on white background from a gorgeous set of handwritten 3D alphabet. You can make any words from these letters. The sizes of each letter in pixels correspond to each other.
Hydrogen with blue structure lines, 3d rendering. 3D illustration.
Photomicrograph of one celled amoeba. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
A micrograph of nanoparticles made of lipids containing an anticancer drug. The drug appears as a crystal inside of the spherical liposomes
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
Molecular model on mirror surface against periodic table
Squash preparation of stained onion root tip cells showing various stages of mitosis. Differential interference contrast optics on a Leica microscope, Image taken with the X40 objective lens.  Depth of focus is extremely shallow (just a few microns).  Differential interference contrast results in an optical slice horizontally through the specimen providing maximum possible resolution at this magnification and good contrast. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Microscopic image showing oxalate crystals from urine sediment, most common cause of kidney stones
DNA Structure Medical Concept
3D Gaussian surface and cartoon models, chain id color scheme, PDB 6pnj, putative membrane is shown, white background
Photomicrograph of a freshwater clustering single-celled green algae,
Free Images: "bestof:Alpha naphyrone structure.png Structure of alpha-naphyrone Own 2011-10-15 Meodipt PD-chem Naphthalenes"
Lupulone synthesisRedrawn.svg
DL-all-rac-alpha-Tocopherol 100.svg
2,6-diaminoheptanedioic acid 200.svg
Cinnoline 200.svg
4,4'-methylenedianiline 200.svg
Resorcinol 200.svg
Methacrylamide 200.svg
Methacrylaldehyde 200.svg
Diphenylmethanol 200.svg
2-bromo-1-phenylethanone 200.svg
(tetrahydrofuran-2-yl)methanol 200.svg
Methyl 2-phenylacetate 200.svg
(S)-2-aminobutanoic acid 200.svg
Sodium 2-hydroxypropanoate 200.svg
Methacrylic acid 200.svg
Procarbazine 200.svg
Benoxaprofen 200.svg
4-(6-methoxynaphthalen-2-yl)butan-2-one 200.svg
2-oxomalonic acid 200.svg
2-oxo-2-phenylacetic acid 200.svg
2-bromo-N-carbamoyl-2-ethylbutanamide 200.svg
2,3,4,6,7,8,9,10-octahydropyrimido(1,2-a)azepine 200.svg
2-hydroxypentanedioic acid 200.svg
1-oxopropane-1,2,3-tricarboxylic acid 200.svg
2-oxopentanedioic acid 200.svg
3,3-dimethylbutan-2-one 200.svg
(peroxybis(propane-2,2-diyl))dibenzene 200.svg
2-(naphthalen-1-yl)acetic acid 200.svg
Clobutinol 200.svg
Norflurazon 200.svg
2-oxo-3-phenylpropanoic acid 200.svg
1-isopropyl-4-methylcyclohexa-1,4-diene 200.svg
1-(naphthalen-1-yl)thiourea 200.svg
1-aminocyclopropanecarboxylic acid 200.svg
Nitrilotriacetic acid 200.svg
5-butylpicolinic acid 200.svg
1-methylpyrrolidin-2-one 200.svg
Methyl 2-phenyl-2-(piperidin-2-yl)acetate 200.svg
Dihydrofuran-2(3H)-one 200.svg
Kainic acid 200.svg
2-butoxy-N-(2-(diethylamino)ethyl)quinoline-4-carboxamide 200.svg
2H-chromen-2-one 200.svg
5-methyl-N-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxamide 200.svg
Mangostin 200.svg
Flutriafol 200.svg
Isopropyl 2,2-bis(4-bromophenyl)-2-hydroxyacetate 200.svg
4-hydroxy-3-(1-phenylpropyl)-2H-chromen-2-one 200.svg
Domperidone 200.svg
2-hydroxy-2-(4-hydroxy-3-methoxyphenyl)acetic acid 200.svg
Hematoporphyrin 200.svg
4-hydroxy-3-(3-oxo-1-phenylbutyl)-2H-chromen-2-one 200.svg
Reserpine 200.svg
2-(1-(4-chlorobenzoyl)-5-methoxy-2-methyl-1H-indol-3-yl)acetic acid 200.svg
Alpha-Terpinene Structure V.1.svg
Alpha-cyanohydrin general structure.svg
Dronabinol.svg
Irodial.svg
Lovastatin2DCSD.svg
Trimethoxyamphetamine structure.svg
Vedaprofen.svg
Pyrabactin.svg
Liafensine.svg
TAPI-1.svg
Cyclobutanone structure.svg
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Alpha-elemene.svg
Alpha-avoparcin.svg
Alpha-methylglucoside.svg
Alpha-selinene.svg
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VT-464.svg
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Paramethoxyethylamphetamine.svg
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Nicodicodeine.svg
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