Methylene Blue Impurity 1

98%

None

Sealed in dry,2-8℃

Room temperature in continental US; may vary elsewhere.

C₁₂H₇N₃O₄S

289.27

None

O=N(=O)C1=CC=C2NC3=CC(=CC=C3SC2=C1)N(=O)=O

98.31

3.7112

6

1

2