gnome-chemistry-utils from Education project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Education/openSUSE_Tumbleweed/Education.repo zypper refresh zypper install gnome-chemistry-utils
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Education/15.4/Education.repo zypper refresh zypper install gnome-chemistry-utils