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4-Chlorobenzenesulfonyl chloride
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CAS NO:98-60-2; MF:C
6
H
4
Cl
2
O
2
S
ssss
2-Pyridyl tribromomethyl sulfone
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CAS NO:59626-33-4; MF:C
6
H
4
Br
3
NO
2
S
ssss
1-Hydroxy-7-azabenzotriazole
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CAS NO:39968-33-7; MF:C
5
H
4
N
4
O
ssss
Pyrazine-2,5-dicarboxylic acid
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CAS NO:122-05-4; MF:C
6
H
4
N
2
O
4
ssss
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