pretty sure sandoz does not make sust. I get sandoz test cyp often from my local pharmacy with my TRT script and the bottles are different than that. They have a smaller neck and smaller top with a smaller cap.
If this didn't come from a pharmacy I'd say either fake, or some UG did a good label copy and there may be sust in it or may not be. As for how correctly it's dosed or how sterile it is...???? Who knows?