May 23 2023: 4-Me-TMP (4-Methylmethylphenidate) confirmed after certified reference standard became available and was ordered and run. Originally identified by library match.
Jan 6 2022: The peak previously described as a degradation product is identified by library match as methyl-p-tolylacetate, a leftover synthesis reagent that would be expected for the synthesis of 4-Methylmethylphenidate (pictured bottom, left, with corrected caption).
Jan 5 2023: 4-Methylmethylphenidate (CAS 191790-79-1) has been suggested as the unidentified chemical in this sample (thank you, Y.) and can be considered an unconfirmed library match. There isn't a commercially available reference standard for 4-Methylmethylphenidate as of Jan 2023.
Jan 3 2023: Appears related to methylphenidate, degradation peak is similar.
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Jan 6 2022: The peak previously described as a degradation product is identified by library match as methyl-p-tolylacetate, a leftover synthesis reagent that would be expected for the synthesis of 4-Methylmethylphenidate (pictured bottom, left, with corrected caption).
Jan 5 2023: 4-Methylmethylphenidate (CAS 191790-79-1) has been suggested as the unidentified chemical in this sample (thank you, Y.) and can be considered an unconfirmed library match. There isn't a commercially available reference standard for 4-Methylmethylphenidate as of Jan 2023.
Jan 3 2023: Appears related to methylphenidate, degradation peak is similar.
Major ion similar to unidentified chemical in DrugsData.org/8458.