https://eragene.com/info/compounds/C3262/
3-methyl-2-oxobutanoate
methyloxobutanoate
https://www.wxdchem.com/Ethyl-4-4-Difluoro-3-Oxobutanoate-pd529065058.html
Ethyl 4,4-Difluoro-3-Oxobutanoate from China manufacturer - Wanxingda
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