1,5-Dichloroanthraquinone

1,5-Dichloroanthraquinone (CAS 82-46-2) undergoes a solid-state polymorphic transformation at 470 K, with two closely related crystal modifications distinguished by their relative lattice parameters above and below the transition temperature. Manufactured directly by Speranza Chemical Co., Ltd. to chemical grade meeting ChP, USP, EP, and JP standards, it is distributed across North and South America, Europe, Australasia, Asia, the Middle East, and Africa, though samples are not provided for this listing.