Di-tert-butyl dicarbonate is a reagent widely used in organic synthesis. This carbonate ester reacts with amines to give N-tert-butoxycarbonyl or so-called Boc derivatives. These derivatives do not behave as amines […]
List of articles in "Chemical Substance" category - Page 791
Asisite
Asisite (Pb7SiO8Cl2) is a yellow tetragonal mineral. It is found at Kombat Mine Kombat Grootfontein District Otjozondjupa Region Namibia. It was named for a farm Asis which covers the mine […]
Phytol
Phytol is an acyclic diterpene alcohol that can be used as a precursor for the manufacture of synthetic forms of vitamin E and vitamin K1. In ruminants the gut fermentation […]
Crabtree’s catalyst
Crabtree’s catalyst is the name given to a complex of iridium with 15-cyclooctadiene tris-cyclohexylphosphine and pyridine. It is a homogeneous catalyst for hydrogenation reactions developed by Robert H. Crabtree a […]
Hellyerite
Hellyerite NiCO3·6(H2O) is an hydrated nickel carbonate mineral. It is light blue to bright green in colour has a hardness of 2.5 a vitreous luster a white streak and crystallises […]
Zaratite
Zaratite is a bright emerald green and questionable nickel carbonate mineral with formula Ni3CO3(OH)4·4H2O. Zaratite crystallizes in the isometric crystal system as massive to mammillary encrustations and vein fillings. It […]
Xifengite
Xifengite (Fe5Si3) is a rare metallic iron silicide mineral. The crystal system of xifengite is hexagonal. It has a specific gravity of 6.45 and a Mohs hardness of 5.5. It […]
Nenadkevichite
Nenadkevichite is a rare silicate mineral containing niobium with formula: (NaCa)(NbTi)Si2O7·2H2O. It forms brown to yellow to rose colored orthorhombic dipyramidal crystals with a dull to earthy luster. It has […]
Tetramethrin
Tetramethrin is a potent synthetic insecticide in the pyrethroid family. It is a white crystalline solid with a melting point of 65-80 °C. The commercial product is a mixture of […]
Copper(II) triflate
Copper (II) triflate is the copper(II) salt of trifluoromethanesulfonic acid (known simply as triflic acid) which has a chemical formula of Cu(OSO2CF3)2. This substance first reported in 1972 is a […]