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Guajakol R-R 5% 25ml Kollagen this one shouldn't be missingGuaiacol Solution 5% Chemical Name: 2 Hydroxy 1 methoxybenzene (Guaiacol) Chemical Formula: C7H8O2 CAS Number: 90 05 1 EC Number: 201 964 7 Molar Mass: 124. 14 g mol Technical Specifications Form: liquid Color: colorless to pale yellow Odor: characteristic, phenolic pH Value: not specified Flash Point: approximately 85C Autoignition Temperature: 450C Boiling Point: ~205C (pure compound) Solubility: readily soluble in ethanol, partially soluble in