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Chemical synthesis is a purposeful execution of chemical reactions to obtain a product, or several products. [1] This happens by physical and chemical manipulations usually involving one or more reactions. In modern laboratory usage, this tends to imply that the process is reproducible, reliable, and established to work in multiple laboratories. A chemical synthesis begins by selection of compounds that are known as reagents or reactants. Various reaction types can be applied to these to synthesize the product, or an intermediate product. This requires mixing the compounds in a reaction vessel such as a chemical reactor or a simple round-bottom flask. Many reactions require some form of work-up procedure before the final product is isolated. [1] The amount of product in a chemical synthesis is the reaction yield. Typically, chemical yields are expressed as a weight in grams (in a laboratory setting) or as a percentage of the total theoretical quantity of product that could be ...

in Bay of Plenty, New Zealand Pyes Pa Pyes Pa Coordinates: 37°49′24″S 176°08′31″E  /  37.82333°S 176.14194°E  / -37.82333; 176.14194 Country   New Zealand Region Bay of Plenty Territorial authority Tauranga Population (2013) [1]  • Total 6,036 Pyes Pa is a suburb of Tauranga, New Zealand. As of the 2013 Census, Pyes Pa had a population of about 6,036 people, making it the most populated suburb in Tauranga [2] Contents 1 Geography 2 History 3 Pyes Pa School 4 References Geography Pyes Pa is in the southern part of Tauranga, located at 37°49′24″S 176°08′31″E  /  37.82333°S 176.14194°E  / -37.82333; 176.14194 . Pyes Pa is 40.3 km from Rotorua. [3] It is less than 10 minutes away from Route K and Greerton Shopping Centre. Pyes Pa includes The Lakes, Cheyne Road and the TECT All Terrain Park. History The New Zealand Wars battle site of Te Ranga is located in a paddock on Pyes Pa Road (SH36) near the corner of ...

本条目 部分链接不符合格式手冊規範 。跨語言链接及章節標題等處的链接可能需要清理。 （2015年12月13日） 請協助改善此條目。參見WP:LINKSTYLE、WP:MOSIW以了解細節。突出显示跨语言链接可以便于检查。   本文介绍的是古代希腊城邦。 關於现代希腊的同名城市，請見「 斯巴达 (自治市) 」。 關於其他同名主题，請見「 斯巴达 (消歧義) 」。 坐标： 37°4′55″N 22°25′25″E  /  37.08194°N 22.42361°E  / 37.08194; 22.42361 body.skin-minerva .mw-parser-output table.infobox caption{text-align:center} 斯巴達 Σπάρτα 前11世紀－前195年 古斯巴達疆域 首都 斯巴達 常用语言 多利亞希臘語 宗教 古希臘宗教 政府 寡頭政治 历史时期 古典時代 • 建立 前11世紀 • 伯羅奔尼撒聯盟 前546年-前371年 • 终结 前195年 先前国 继承国 希臘黑暗時代 羅馬共和國 亞該亞同盟 斯巴达 （希腊语： Σπάρτη ）（英語：Sparta)，又称 拉刻代蒙 （ Λακεδαίμων , Lakedaímōn ）是古代希腊城邦之一，斯巴达城位于中拉哥尼亚平原的南部，埃夫罗塔斯河的西岸。斯巴达城是个战略要冲，三面环山，扼守着塔伊耶托斯山脉，塔伊耶托斯山脉上的隘口是进入拉科尼亚和南部伯罗奔尼撒半岛的必经之路，斯巴达城并不靠海，离她的海港吉雄有27英里的距离。 斯巴达以其名。斯巴达是寡头政治，和当时雅典的民主制度形成鲜明对比。斯巴达规定所有男人必须从军。斯巴达拥有众多国的奴隶，称为黑劳士，因此「斯巴達式」也成為艱苦地進行的代名詞。在伯罗奔尼撒战争中，斯巴达及其同盟者战胜雅典军队并霸权整个希腊。但斯巴達在稱霸希臘不久後便被新興的底比斯打败，在北方的馬其頓崛起後，斯巴達失去了在希臘的影響力。 目录 1 历史 1.1 建立城邦 1.2 组建同盟 ...

"Pregneninolone" redirects here. For the similarly named steroid, see Pregnenolone. Ethisterone Clinical data Trade names Proluton C, Pranone, others Synonyms Ethinyltestosterone; Ethynyltestosterone; Pregneninolone; Anhydrohydroxyprogesterone; Etisteron; Pregnin; Ethindrone Routes of administration By mouth, sublingual [1] Drug class Progestin; Progestogen; Androgen; Anabolic steroid ATC code G03DC04 ( WHO ) Pharmacokinetic data Metabolites • 5α-Dihydroethisterone [2] Identifiers IUPAC name (8 R ,9 S ,10 R ,13 R ,14 S ,17 R )-17-Ethynyl-17-hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1 H -cyclopenta[ a ]phenanthren-3-one CAS Number 434-03-7   Y PubChem CID 5284557 ChemSpider 4447612   Y UNII P201BVY1MJ ChEBI CHEBI:34749   Y ChEMBL ChEMBL241694   Y ECHA InfoCard 100.006.452 Chemical and physical data Formula C 21 H 28 O 2 Molar mass 312.446 g/mol 3D model (JSmol) I...