间苯二酚，Resorcinol；GR for analysis, ≥99.0%

Assay (bromatometric, calculated on dried substance): ≥ 99.0 %
Identity (IR-spectrum): passes test
Melting range (lower value): ≥ 109.0 °C
Melting range (upper value): ≤ 111.0 °C
Chloride (Cl): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.0005 %
Catechol: passes test
Phenol: ≤ 0.01 %
Sulfated ash: ≤ 0.02 %
Loss on drying: ≤ 1.0 %
Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).