CAS number
English substance name
Original name of substance
Control concentration (w/w%)
Regulated activities
Hazardous
Details
10024-97-2
Nitrous Oxide
一氧化二氮(笑气)
all concentrations
(indicating that all concentrations need to be controlled)
Manufacture, import, sale, use and storage
no
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7664-39-3
Hydrogen Fluoride
氟化氢(氢氟酸)
0.1
Manufacture, import, sale, use and storage
yes
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110-63-4
1,4-Butanediol
1,4-丁二醇
95
Manufacture, import, sale, use and storage
no
More
475-81-0
(S)-5,6,6a,7-tetrahydro-1,2,9,10-tetramethoxy-6-methyl-4H-dibenzo[d,e,g]quinoline
海罂粟碱
all concentrations
(indicating that all concentrations need to be controlled)
Manufacture, import, sale, use and storage
no
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1317-36-8
Lead monoxide
一氧化铅
90
Manufacture, import, sale, use and storage
no
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1314-41-6
Lead tetroxide
四氧化三铅
95
Manufacture, import, sale, use and storage
no
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1313-82-2
Sodium sulfide
硫化钠
50
Manufacture, import, sale, use and storage
no
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540-72-7
Sodium thiocyanate
硫氰酸钠
90
Manufacture, import, sale, use and storage
no
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135-19-3
β-Naphthol
β-荼(萘)酚
95
Manufacture, import, sale, use and storage
no
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6484-52-2
Ammonium nitrate
硝酸铵
80
Manufacture, import, sale, use and storage
yes
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List of Concerned Chemical Substances in Taiwan, China
List of Concerned Chemical Substances in Taiwan is a newly added list by the Environmental Protection Administration of the Executive Yuan in 2019 during the revision of the Toxic and Concerned Chemical Substances Control Act (TCCSCA) to further manage chemical substances from the source, facilitating the expansion of controlled chemical substances and their classification management, so as to grasp the flow of substances. Currently, a total of 18 chemical substances is included in the List and regulated by TCCSCA.