呋喃是指含一個氧雜原子的五元芳雜環化合物,存在于松木焦油中。呋喃的蒸氣遇到被鹽酸浸濕過的松木片時會呈現綠色,叫做松木反應,可用來鑒定呋喃的存在。
呋喃是指含一個氧雜原子的五元芳雜環化合物,存在于松木焦油中。呋喃的蒸氣遇到被鹽酸浸濕過的松木片時會呈現綠色,叫做松木反應,可用來鑒定呋喃的存在。
2009852 貨期咨詢
¥ ǐǐ????? -1g
2009864 貨期咨詢
¥ ō??ō??? -1g
2009939 貨期咨詢
¥ ōūū???? -1g
2009985 貨期咨詢
¥ ??????? -1g
2009994 貨期咨詢
¥ ǐ?????? -1g
2009999 貨期咨詢
¥ ū?????? -1g
2010003 貨期咨詢
¥ ǐ?????? -1g
2010033 貨期咨詢
¥ ??????? -1g
2010188 貨期咨詢
¥ ō?????? -1g
2010288 貨期咨詢
¥ ō??ō??? -1g
2010305 貨期咨詢
¥ ū??ō??? -1g
2010747 貨期咨詢
¥ ō?ūō??? -1g
2010954 貨期咨詢
¥ ??????? -1g
2011319 貨期咨詢
¥ ???ō??? -1g
2011677 貨期咨詢
¥ ?ǐ????? -1g
2011773 貨期咨詢
¥ ō??ō??? -1g
2011775 貨期咨詢
¥ ō?ūū??? -1g
2011783 貨期咨詢
¥ ??????? -1g
2012071 貨期咨詢
¥ ǐǐ????? -1g
2012082 貨期咨詢
¥ ǐ??ǐ??? -1g
2012103 貨期咨詢
¥ ?ū????? -1g
2012129 貨期咨詢
¥ ??????? -1g
2012208 貨期咨詢
¥ ??????? -1g
2012335 貨期咨詢
¥ ō??ū??? -1g
2012389 貨期咨詢
¥ ??????? -1g
2012448 貨期咨詢
¥ ??????? -1g
2012463 貨期咨詢
¥ ō??ō??? -1g
2012573 貨期咨詢
¥ ō?ō???? -1g
2012701 貨期咨詢
¥ ǐ?????? -1g
2012836 貨期咨詢
¥ ???ǐ??? -1g
共 10151 個產品,每頁顯示 30 個。
現貨供應
專業護航
售后無憂
品質保障
無需湊單