L-HISTIDINE is an amino acid used in pharmaceutical manufacturing processes. L-HISTIDINE is a white crystalline powder that is freely soluble in formic acid and soluble in water. It contains not less than 99.0 percent and not more than 101.0 percent of L-HISTIDINE (C6H9N3O2), calculated on the dried basis. L-HISTIDINE conforms to compendial standards for identification, assay, purity and other tests. The precise levels of L-HISTIDINE support consistent manufacturing of pharmaceutical products. L-HISTIDINE provides key benefits for pharmaceutical applications including its ability to help synthesize proteins and regulate gene expression which is important for developing effective medicines.