Product name: methyl paraben, methyl 4-hydroxybenzoate preservative, methylparaben Enterprize type: manufacturer Quality Specification Item StandardAppearance Colorless crystals or white crystalline powderPurity (on dry base ) % 99.0-100.5Identification Qualified Appearance of Solution Qualified Acidity Qualified Related Substances Qualified Sulfate(So42) % ≤ 0.10 Residue % ≤ 0.10 Melting Point 125-128 Organic Volatile impurities Qualified