Certificate of Analysis Product Benzoin resinoid Botanical name Styrax benzoin Appearance Viscous liquid Colour Brown Odour Warm, sweet Specific gravity @ 20degC 0.990 Optical rotation @ 20degC na Refractive index @ 20degC na Flash point >200degF Solubility Soluble in alcohol; insoluble in water Main constituents (%): benzoresinol 25.2; sumarisinotannol 12.4; vanillin 10.5; styrol 4.3; styracin 3.5; phyenyl prophyl cinnamate 3.2; benzaldehyde 2.1.