As promised, here are screenshots of the invoices from LGCStandards for the purchase of standards for 2-MMC, 3-MMC, and 4-MMC. You’ll notice that two standards were purchased for 4-MMC: One liquid and one in powder. This is so that we can compare our results from weighing and dissolving the standards to an already dissolved standard, and make the necessary adjustments if the results are not the same. The 2-MMC and 3-MMC should arrive quickly, the 4-MMC will take significantly longer due to the bureaucracy that comes with it being a controlled substance. the approximately 20 euro remaining were spent converting the BTC to Euro. Thanks again for making the adquisition of the standards possible!