p-Anisic Acid
Description
p-Anisic Acid (CAS 100-09-4), also recognized by its FEMA 3945 designation, is an aromatic organic acid derived from anise that delivers a characteristic sweet, floral-herbal note in flavor and fragrance applications.
It functions as a flavoring agent, mild preservative, and pH modifier across pharmaceutical, cosmetic, and food manufacturing. In flavor formulations, it contributes anise-like top notes to confectionery and baked goods.
It is also used in beverage products where natural-profile aromatics are required. Cosmetic and personal care formulators incorporate it as a preservative booster and fragrance fixative in creams, lotions, and rinse-off products.
Pharmaceutical manufacturers use it as an intermediate in synthesizing active ingredients and as a mild antimicrobial agent in topical preparations. In food-grade applications, it supports pH regulation in acidified products.
This is particularly useful where both buffering capacity and flavor contribution are commercially desirable. p-Anisic Acid is supplied as a white to off-white crystalline powder for various industrial uses.
Food and flavor grades conforming to FEMA 3945 standards are the most common commercial forms. Pharmaceutical-grade material is also available to USP and BP specifications for high-purity requirements.
Packaging typically ranges from kilogram quantities for specialty formulators to bulk drum supply for industrial buyers. This ensures consistent quality and availability for large-scale manufacturing operations worldwide.
Physical Properties
| Melting Point | 185 °C |
| Boiling Point | 126 °C @ Press: 16 Torr |
| Density | 1.385 |
| Flash Point | 185 °C |
| Appearance | white powder |
| Color | White to slightly gray-beige |
| Odor | at 10.00 % in dipropylene glycol. faint putrid sweet cadaverous |
| Form | Powder |
| Water Solubility | Soluble in water at 20°C 0.3g/L. Soluble in alcohol, ethyl acetate and ether. |
| Vapor Pressure | 0.001Pa at 25℃ |
| Refractive Index | 1.571-1.576 |
| pH | 3-4 (0.3g/l, H2O, 20℃) |
| Log P | 1.96 |
Safety & Handling (Learn More)
Trade & Regulatory
| HS Code | 29189090 |
| Storage Class | 13 - Non Combustible Solids |
| WGK (Germany) | 1 |
Documentation
Other Names
4-methoxybenzoic acid
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