CAS 128446-35-5 White Powder 2-Hydroxypropyl-β-cyclodextrin/ HP-β-CD/ HPBCD Factory Product Description 1. Product Description HP-β-CD is a modified cyclic oligosaccharide derived from starch. Its hydrophobic cavity encapsulates volatile organic compounds (VOCs), neutralizing odors by forming non-covalent inclusion complexes. The hydroxypropyl groups enhance water solubility, biocompatibility, and environmental safety. Ideal for powdered holding-tank treatments due to rapid