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Yellow Crystal - chemical subs...

100×100 1958 472

White Crystal - pure substance...

100×100 1566 448

Cadmium Complex - organometall...

803×441 3527 797

Nitrous Oxide - nitrous oxide...

144×144 653 154

TNT - nitroglycerin - PNG Imag...

228×138 714 207

Medicine Bottle - chemical sub...

200×200 2449 610

Water molecule - three-dimensi...

196×226 1799 379

Water molecule - hydroxyl comp...

248×278 2868 574

Gold Particles - nanometer sca...

196×124 2283 522

Water Molecule - hydrogen-oxyg...

240×240 4314 1038