Melting point -1 °C Boiling point 248 °C(lit.) Density 1.121 vapor density 4.7 (vs air) vapor pressure <1 hPa (20 °C) refractive index n20/D 1.573(lit.) FEMA 2670 | P-METHOXYBENZALDEHYDE Flash point 228 °F storage temp. Store below +30°C. solubility 2g/l form Liquid color Clear colorless to yellow Odor sweetish odor PH 7 (2g/l, H2O, 20ºC) explosive limit 1.4-5.3%(V) Water Solubility Miscible with acetonee, alcohol, ether, chloroforrm and benzene. Immiscible with water. Sensitive Air Sensitive Decomposition > 160°C
Usage And Synthesis Product description
Anisaldehyde(Anisic aldehyde),also known as anisaldehyde,4-methoxybenzaldehyde, anisaldehyde, anise aldehyde, is colorless to pale yellow liquid at room temperature with a similar smell of hawthorn. Density 1.123g/cm3 (20 ºC). Melting point 2ºC. The boiling point is 249.5. The refractive index is 1.5731. It is difficult to dissolve in water (solubility in water 0.3%), slightly soluble in propylenee glycol, glycerin, soluble in ethanol, ether, acetonee, chloroforrm and other most organic solvents. It can be volatiled with the steam. It exists in the oil of anise, fennel oil, dill oil, Acacia flowers, vanilla extract in nature, obtained by oxidation and separation. The synthesized methods are as follows:(1) Phenoll is methylated with dimethyl sulfate, and then it is followed by the reaction of chlorinee methylation, hydrolysis; (2) p-cresoll is methylated and then obtained by further oxidized; (3) It can be obtained through methylation of p-hydroxybenzaldehyde. It is mainly used as flavor base of hawthorn, sunflower, lilac and other flavors, blending spices of new treasure, white gold Albizia julibrissin, Acacia, grass perfume and other flavors, co-flavoring agents of Lily fragrance and modified agent of sweet scented osmanthus flavor. Tetra (p-methoxyphenyl) porphyrin and cobalt complexes can be synthetized by methoxy benzaldehyde and pyrrole as raw materials, in the reaction system of propioniic acid as solvent and chloroacetic acid as catalyst. As an excellent bright agent for non-cyanide zinc plating DE additive, it can improve the anodic polarization over a wide current range, get bright coating, to create favorable conditions for environmental protection. Anti-microbial drugs cefadroxil benzyl penicillin derived from anisaldehyde in the pharmaceutical industry for the manufacture is an intermediate of antihistamine drugs. It is allowed for the use of edible spices conformed to China's GB2760-86 regulations .It is mainly for the preparation of essence of vanilla, spices, apricot, cream, fennel, caramel, cherry, chocolate, walnuts, raspberry, strawberry, mint and so on. Methoxycinnamic aldehyde can be obtained through condensation of anisaldehyde and acetaldehydee in alkaline conditions.
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