| alpha-pinene oxide lyase | <enzyme> From nocardia sp. Strain p18.3; catalyses the cleavage of both rings of the bicyclic structure with the formation of 2-methyl-5-isopropylhexa-2,5-dienal Registry number: EC 4.1.2.- Synonym: alpha-pinene oxide lyase (decyclizing) (26 Jun 1999) |
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| aluminum bismuth oxide | A gastric antacid. Synonym: aluminum bismuth oxide. (05 Mar 2000) |
| aluminum oxide | <chemical> Aluminum oxide (al2o3). An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories. Chemical name: Aluminum oxide (Al2O3) (12 Dec 1998) |
| antimonous oxide | Sb2O3;used technically in paints and flame-proofing; also used as an expectorant and emetic. Synonym: antimonous oxide, antimony oxide, flowers of antimony. Abbreviation: Sb (05 Mar 2000) |
| antimony oxide | Sb2O3;used technically in paints and flame-proofing; also used as an expectorant and emetic. Synonym: antimonous oxide, antimony oxide, flowers of antimony. Abbreviation: Sb (05 Mar 2000) |
| arsenous oxide | As2O3;dissolves in water to give arsenous acid, H3AsO3; used in the treatment of skin diseases and malaria, and as a tonic; also used externally as a caustic. Synonym: arsenous oxide, white arsenic. (05 Mar 2000) |
| barium oxide | BaO;it is caustic, forming the strong base, Ba(OH)2, in water; used as a dehydrating agent. Synonym: baryta. (05 Mar 2000) |
| basic oxide | A base anhydride; an oxide of an electropositive element or radical; it can combine with water to form a base. (05 Mar 2000) |
| benzo(a)pyrene-4,5-oxide hydratase | <enzyme> Aspect of epoxide hydrolase, EC 3.3.2.3 Registry number: EC 3.3.2.- (26 Jun 1999) |
| benzopyrene 4,5-oxide reductase | <enzyme> Nadph and cytochrome p-450-dependent reduces epoxide to glycol Registry number: EC 1.- Synonym: benzo(a)pyrene 4,5-epoxide reductase, bap 4,5-or, benz(a)pyrene 4,5-oxide reductase (26 Jun 1999) |
| bismuth chloride oxide | BiOCl;basic bismuth chloride, used for the same purposes as the subnitrate. Synonym: bismuth chloride oxide, bismuthyl chloride. (05 Mar 2000) |
| bismuth oxide | Bi2O3;used for the same purposes as the subnitrate. (05 Mar 2000) |
| calcium oxide | <chemical> A chemical compound with the formula CaO which is a whitish, odourless solid that does not dissolve well in water. It will, however, react with water (H20) to form calcium hydroxide (CaOH, a base). It has a melting point of 2614 degrees Celsius and a boiling point of 2850 degrees Celsius. It can be made by heating calcium carbonate (CaCO3, limestone) until carbon dioxide (CO2) is released. It has a great many industrial uses. (09 Oct 1997) |
| magnesium oxide | <chemical> Magnesium oxide (mgo). An inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses. Pharmacological action: antacids, cathartic. Chemical name: Magnesium oxide (MgO) (12 Dec 1998) |
| mercuric oxide | The red precipitate of HgO; it has been used externally as an antiseptic in chronic skin diseases and fungus infections. The yellow precipitate of HgO; used externally as an antiseptic in the treatment of inflammatory conditions of the eyelids and the conjunctivae. (05 Mar 2000) |