单词	diastereoisomer
释义	diastereoisomer /ˌdʌɪəstɛrɪəʊˈʌɪsəmə / noun Chemistry Each of a pair of stereoisomeric compounds that are not mirror images of one another.Because of the presence of two chiral carbon atoms in the dioxolane linker, the chemical synthesis route leads to two distinct diastereoisomers, in which the linkers are respectively SS and RR.... It has five chiral carbons and only the naturally occurring diastereoisomer is biologically active. The precipitated diastereoisomer was pressed out and washed with approx.20 l of ice-cold 2-propanol. Derivatives diastereoisomeric /ˌdʌɪəstɛrɪəʊʌɪsəˈmɛrɪk/ adjective ... Two diastereoisomeric forms, respectively SS and RR, of chemically modified channels in which a dioxolane ring links the formylated N-termini of two gramicidin monomers, were shown to form ion channels. Whilst most of the discussion has been about diastereoisomeric salts, it does not have to be so. Both 9 and 10 have four stereogenic centers giving rise to diastereoisomeric compounds existing as mixtures of two racemates.
随便看	on one's own hook on one's own initiative on one's own responsibility on one's plate on one's toes on one's uppers Onopordon Onopordum on (or at or in) every corner on (or at) sight on (or by) foot on order verglas veridical veridicality veridically veriest verifiable verifiably verification verification principle verifier verify verily verisimilar

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。