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Naphazoline Impurity 1（Naphazoline EP Impurity A）

CAS No. 36321-43-4

Chemical Formula : C14H16N2O

STD No. 6711N
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Naphazoline Impurity 2（Naphazoline EP Impurity B）

CAS No. 86-87-3

Chemical Formula : C12H10O2

STD No. 6712N
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Naphazoline Impurity 3（Naphazoline EP Impurity C）

CAS No. 132-75-2

Chemical Formula : C12H9N

STD No. 6713N
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Naphazoline Impurity 4（Naphazoline EP Impurity D）

CAS No. 22126-67-6

Chemical Formula : C14H14N2

STD No. 6714N
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Naphazoline

CAS No. 835-31-4

Chemical Formula : C14H14N2

STD No. 671N
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