Description Chemical Name: DL-hydroxysuccinic acid CAS: 617-48-1 Molecular Formula: C4H6O5 Molecular Weight: 134.09 Specifications Appearations: white crystal or crystal powder Assay(C4H6O5): 99.0-100.5% Fumaric acid: ≤1.00% Maleic acid: ≤0.05% Lead: ≤2ppm Arsenic: ≤2ppmSulphated ash: ≤0.10% Water insolubles: ≤0.10% Specific rotation[α]20: -0.10+0.10° Thedata above is general description, does not as a contract or order constraint.