Two different bags of O-DSMT, same order?

I ordered O-DSMT powder from a big Dutch vendor and when I opened the packages I noticed differences between the 2 bags of O-DSMT. One is completely white and is a different substance (lighter/finer). The other is more yellowish is more like crystals. The white one has a chemical smell and the yellow one virtually no smell. Why is this difference and are both O-DSMT?