2,5-Dihydroxybenzoic acid

2,5-Dihydroxybenzoic acid (CAS 490-79-9) is a chemical-grade compound manufactured directly by Shanghai Aladdin Biochemical Technology Co., Ltd. at a minimum purity of 99% by HPLC, noted by the supplier as a matrix substance for MALDI-MS. Samples are available, and it is sold across North America, Central/South America, Western and Eastern Europe, Australasia, Asia, the Middle East and Africa.