00000nz  a2200000n  4500
001  KSH2001010679
005  20201015130928
008  010612 n azknn|abn          |a a|a    | 
150  ▼a탄소 원자[炭素原子]▲
550  ▼wg▼a원자[原子]▲
550  ▼wh▼a비대칭 탄소 원자[非對稱炭素原子]▲
550  ▼a그래핀[graphene]▲