Erlotinib Impurity 22 , 0.95 , 【950596-59-5】
Molecular Formula: C16H23N3O4
Formula Weight: 321.37
3-Difluoromethanesulfonyl-4-methylaniline , NLT 95% , 【1512534-35-8】
Molecular Formula: C8H9F2NO2S
Formula Weight: 221.224
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