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Anyone else couldn't receive the CoA for acetonitrile and methanol, item 1000304000 batch JB158930 and item 1060074000 batch JB162407, from Sigma Aldrich's website?
I am currently unable to keep my laboratory working due to this issue with our new package of mobile phase.
I hope someone can help me with this issue. Sigma won't pick my calls and still doesn't reply my e-mail.
u/Alarming_Thing1075 — 20 days ago