ChemRxiv (pronounced "chem archive"—the X represents the Greek letter chi [χ]) is an open access preprint archive for chemistry.
[3][4] The new preprint server was announced already in 2016,[5][6] but was only opened online in 2017.
[7] Initially, editors of ACS journals were skeptical and only 80% of the editors allowed submissions to be uploaded to the preprint server in 2017.
[9][10] The initial reception of ChemRxiv was one of hesitation,[6] with several major journals of the founding organizations initially unsupportive: Angewandte Chemie gave support in March 2018[11] and JACS only gave support in August 2018.
[12] However, ChemRxiv received more than 1,000 submissions in the first eighteen months.,[13] growing to 2,314 in 2019.