On Wed, 06 Nov 2019, Joseph Wright wrote: > chemformula > - units > - nicefrac nicefrac is not a package, but contained in units. Thanks for the lists Norbert -- PREINING Norbert http://www.preining.info Accelia Inc. + IFMGA ProGuide + TU Wien + JAIST + TeX Live + Debian Dev GPG: 0x860CDC13 fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13