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Dibenzo-18-crown-6

Dibenzo-18-crown-6 (DB18C6) is a cyclic polyether first discovered by Charles J. Pedersen at DuPont, and its subsequent work led to a 1987 Nobel Prize.

Dibenzodioxin

Dibenzodioxin, or dibenzo-p-dioxin, is a tricyclic aromatic compound, C12H8O2, in which two benzene rings are fused to a central 1,4-dioxin ring bridged by two oxygen atoms.

Dibenzothiophene

Dibenzothiophene (DBT) is an organosulfur compound with formula C12H8S, consisting of two benzene rings fused to a central thiophene ring; it occurs in crude oil and is the model compound for desulfurization-resistant sulfur in fuels.

Dibenzoylmethane

Dibenzoylmethane is a beta-diketone, acetylacetone with both methyl groups replaced by phenyl groups, whose derivative avobenzone is among the most common UVA filters in sunscreens.

Dibenzylideneacetone

Dibenzylideneacetone, also called dibenzalacetone, is a bright-yellow organic compound with formula C17H14O, made from benzaldehyde and acetone and used in sunscreens and palladium catalysts such as Pd2(dba)3.

Dibenzyltoluene

Dibenzyltoluene (DBT) is an aromatic hydrocarbon mixture used as a liquid organic hydrogen carrier, storing 6.2 wt% hydrogen that a catalyst releases at about 300 °C.

Diberyllocene

Diberyllocene (CpBeBeCp) is an organometallic beryllium compound with a direct beryllium–beryllium bond, first synthesized by Boronski and Aldridge at Oxford in 2023 and published in Science.

Diborane

Diborane (B₂H₆), also called boroethane, is the simplest stable boron hydride, a colorless, highly toxic, extremely flammable gas used to dope silicon in semiconductor manufacturing.

Diborene

A diborene is a compound containing a boron–boron double bond, the heavier group 13 analog of an alkene; the first neutral example was reported in 2007.

Diboryne

A diboryne is a neutral compound of the form L→B≡B←L, with a boron-boron triple bond; the first stable example, B₂(IDipp)₂, was isolated in 2012.

Dibotermin alfa

Dibotermin alfa (rhBMP-2), marketed as InductOs and Infuse, is a recombinant CHO-cell-derived bone morphogenetic protein-2 implant for lumbar spinal fusion and acute tibial fractures; EU-authorized 2002, suspended 2015 over sponge manufacturing.

Dibromsalan

Dibromsalan (4',5-dibromosalicylanilide, DBS, temasept I) is a brominated salicylanilide disinfectant formerly used in soaps, cosmetics, and veterinary flukicide mixtures, withdrawn after causing photoallergic dermatitis.

Dibrugarh (ডিব্রুগড়)

Dibrugarh (ডিব্রুগড়), the Tea City of India, is an industrial city and district headquarters in Upper Assam on the Brahmaputra, now being developed as Assam's second capital with a new Legislative Assembly complex.

Dibucaine

Dibucaine, also known as cinchocaine, is a potent amino amide local anesthetic developed in 1925, used mainly in topical ointments for hemorrhoids and minor skin irritation.

Dibunic acid

Dibunic acid, also called 2,6-di-tert-butylnaphthalene-1-sulfonic acid, is the parent acid of sodium dibunate (CAS 14992-59-7, L-1633, Becantex), a non-opioid antitussive, ATC R05DB16, for non-productive cough.

Dibunophyllum

Dibunophyllum (Thomson & Nicholson, 1876) is an extinct genus of large solitary rugose coral with an axial column, type material from the Carboniferous Limestone of Derbyshire, and a Visean to Permian range across Europe, Asia, and North America.

Dibutyl phthalate

Dibutyl phthalate (DBP) is a manufactured phthalate ester, a colorless oily liquid used chiefly as a plasticizer in plastics, paints, and adhesives, and formerly in nail polish.

DIC Entertainment

DIC Entertainment (DiC), also DIC Audiovisuel, DIC Enterprises, and DIC Animation City, was a French-American children's animation studio founded by Jean Chalopin in Paris, famed for Inspector Gadget, sold to Cookie Jar in 2008, library now with WildBrain.

Dicaeum

Dicaeum (typical flowerpeckers), genus Cuvier 1816 in family Dicaeidae, small tropical passerines from southern Asia to New Guinea and Australia; fruit- and mistletoe-eating, distinct from Prionochilus.

Dicalcium phosphate

Dicalcium phosphate, or dibasic calcium phosphate, is the calcium phosphate salt CaHPO4, used as the food additive E 341 (ii), a feed phosphate, and a bone-repair ceramic.

Dicalcium silicate

Dicalcium silicate (Ca₂SiO₄), known as belite in cement, is the second main silicate phase of Portland cement clinker, making up 15 to 30% and hydrating more slowly than alite.

Dicamba

Dicamba (2-methoxy-3,6-dichlorobenzoic acid) is a Group 4 synthetic auxin, benzoic acid herbicide controlling broadleaf weeds in corn, soybean, cotton, and turf; known for volatility-driven off-target crop injury and repeated US court vacaturs of its over-the-top registrations.

Dicarbofunctionalization

Dicarbofunctionalization is a chemical transformation that adds two carbon-based groups across an alkene in a single operation, forging two carbon–carbon bonds, often with nickel catalysis.

Dicarboxylate/Amino Acid:Cation Symporter

DAACS (TC 2.A.23), the Dicarboxylate/Amino Acid:Cation Symporter family, secondary transporters coupling dicarboxylate and amino acid uptake to Na+ or H+; human SLC1 members, GltPh trimer fold, bacterial DctA.

Dicarboxylic acid

A dicarboxylic acid is an organic acid containing two carboxyl groups; oxalic acid is the simplest, and adipic acid is the key monomer for nylon-6,6.

Dicarboxylic aciduria

Dicarboxylic aciduria is the abnormal urinary excretion of medium-chain dicarboxylic acids, chiefly adipic, suberic, and sebacic acids, caused by blocked mitochondrial fatty acid oxidation and seen in inherited fatty acid oxidation disorders.

Dicarboxylic aminoaciduria

Dicarboxylic aminoaciduria (glutamate-aspartate transport defect, OMIM 222730) is a rare autosomal recessive SLC1A1/EAAT3 disorder causing urinary loss of glutamate and aspartate, sometimes with hypoglycemia, kidney stones, or neuropsychiatric signs.

Dice

Dice: small polyhedral randomizers for games and gambling, from Native American dice over 12,000 years old and Ur's 2600 BC tetrahedra to NdX notation, bell-curve totals, and fair-dice design.

Dice (band)

Dice (band) covers several unrelated acts: DICE, a Perth indie-rock quartet formed 2020 (Midnight Zoo, ARIA charts), and DICE, a German progressive rock band founded 1974 by Christian Nóvé, plus other artists sharing the name.

DICE (company)

DICE (EA Digital Illusions CE AB), Swedish studio founded 1992, creator of Battlefield, Mirror's Edge, and Star Wars Battlefront, EA-owned since 2006, Frostbite engine developer.