00000nz  a2200000n  4500
001  KSH1998032817
005  20021112161304
008  980429 n azknn|abn          |a a|a    | 
150  ▼a아세틸화[--化]▲
450  ▼wr▼i영어▼aacetylation▲
550  ▼wg▼a화학 반응[化學反應]▲
550  ▼a아세틸[acetyl]▲