Medchemexpress, HY-N0083 50mg Betulin CAS:473-98-3 Betulin (Trochol), is a sterol regulatory element-binding protein ( SREBP ) inhibitor with an IC 50 of 14.5 μM in K562 cell line. Purity:>98% Medchemexpress has over 10000 novel life-science reagents, reference compounds, APIs and natural compounds for laboratory and scientific use. Other quantity can also be offered.