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。
2020182 貨期咨詢
¥ ??ī???? -1g
2020266 貨期咨詢
¥ ??????? -1g
2020339 貨期咨詢
¥ ī?????? -1g
2020344 貨期咨詢
¥ ??????? -1g
2020363 貨期咨詢
¥ ??????? -1g
2020430 貨期咨詢
¥ ??īī??? -1g
2020473 貨期咨詢
¥ ???ī??? -1g
2020651 貨期咨詢
¥ ??????? -1g
2020657 貨期咨詢
¥ ??????? -1g
2020678 貨期咨詢
¥ ??????? -1g
2020686 貨期咨詢
¥ ??????? -1g
2020694 貨期咨詢
¥ ī??ī??? -1g
2020697 貨期咨詢
¥ ??????? -1g
2020761 貨期咨詢
¥ ī?????? -1g
2020828 貨期咨詢
¥ ??????? -1g
2020855 貨期咨詢
¥ ??????? -1g
2020858 貨期咨詢
¥ ī?????? -1g
2020940 貨期咨詢
¥ ī?????? -1g
2021081 貨期咨詢
¥ ?ī?ī??? -1g
2021141 貨期咨詢
¥ ?ī?ī??? -1g
2021279 貨期咨詢
¥ ??????? -1g
2021325 貨期咨詢
¥ ??????? -1g
2021356 貨期咨詢
¥ ī?????? -1g
2021424 貨期咨詢
¥ ī??ī??? -1g
2021464 貨期咨詢
¥ ??????? -1g
2021595 貨期咨詢
¥ ī?????? -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