Comment · Fri, June 10, 2016
status of 7,8-dihydroxyflavone ?
Original post in this thread
lorrieh · 1 points
I know that MrY mentioned a few months ago that his samples didn't match the Sigma-Aldrich reference samples, and he didn't feel comfortable selling this compound until he could explain the discrepancy.
so where are we on that?
What they were answering
ebowden · 1 points
How could we determine if Sigma got it wrong? (Both the others and sigma could have got it wrong.) X-ray crystallography?(I REALLY don't know much about this.) That's very routine at my university, though it is the best in Australia.
u/MisterYouAreSoDumb
I HIGHLY doubt Sigma Aldrich got it wrong. I mean, I guess it could happen. However, who would you trust more, THT/TLR/A Chinese lab, or a $17 Billion subsidiary of Merck? Sigma Aldrich is pretty much the standard for analytical samples.
An NMR of the Sigma standard would be able to tell for sure. Again, it just takes money. I'll get it figured out soon.