Product name: Azelaic acid Synonyms: Azelainic acid INCI name: Azelaic acid CAS No.: 123-99-9 EINECS: 204-669-1 Quality: assay 99% up by HPLC Molecular formula: C9H16O4 Molecular weight: 188.22   Description: azelaic acid is a dicarboxylic acid. It works on skin as a gentle leave-on exfoliant which helps unclog pores and refine skin's surface. Azelaic acid also significantly lessens factors in skin that lead to sensitivity and bumps and delivers antioxidant benefits.    Specification (assay 99% up by HPLC): Items Specifications Appearance White to slightly yellow monocline rhombus crystalline,needle crystalline powder Identification(MS) positive Clarity and colour of solution 5ml 1% 1N NaOH solution is colourless and clear Chlorides ≤0.005% Sulfates ≤0.025% Heavy metals ≤0.001% Fe ≤0.002% Assay (by HPLC) ≥99.0% Particle size 100%<80um,min50%<50um Production capacity: 1000kg/month Storage condition: Stored in cool, dry place, room temperature. Package material: drum Package size:1kg/drum, 5kg/drum, 10kg/drum, 25kg/drum