Products Description of Kojic Acid CAS#501-30-4
Kojic acid is an organic acid with antibacterial properties produced through the aerobic fermentation of glucose by Aspergillus candida at 30–32°C. Its molecular structure belongs to the γ-pyrone family with a substituted group. Among naturally occurring γ-pyrone compounds, kojic acid and maltol are the most widely recognized.
Kojic acid crystals were first isolated from rice koji by Saito in 1907. The compound was officially named by Yabuta in 1912, and its chemical structure was identified in 1924. Later studies, including surface fermentation research by Arnstela in 1953 and submerged fermentation studies by Kitada Makuo in 1971, confirmed through isotope tracing technology that kojic acid is formed via direct oxidation and dehydration of glucose without carbon skeleton cleavage.
Kojic acid Chemical Properties
| Melting point | 152-155 °C (lit.) |
| Boiling point | 179.65°C (rough estimate) |
| density | 1.1712 (rough estimate) |
| refractive index | 1.4434 (estimate) |
| storage temp. | Store below +30°C. |
| solubility | DMSO (Slightly), Methanol (Slightly, Sonicated) |
| form | Crystalline Powder |
| pka | 7.9(at 25℃) |
| color | White to beige-brown |
| Water Solubility | SOLUBLE |
| λmax | 269nm(CHCl3)(lit.) |
| Merck | 145317 |
| BRN | 120895 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| LogP | -0.64 |
| CAS DataBase Reference | 501-30-4(CAS DataBase Reference) |
| NIST Chemistry Reference | 5-Hydroxy-2-(hydroxymethyl)-4h-pyran-4-one(501-30-4) |
| IARC | 3 (Vol. 79) 2001 |
| EPA Substance Registry System | Kojic acid (501-30-4) |
| Hazard Codes | Xn |
| Risk Statements | 40-68 |
| Safety Statements | 22-24/25-36/37-36 |
| WGK Germany | 3 |
| RTECS | UQ0875000 |
| HS Code | 29329995 |
| Hazardous Substances Data | 501-30-4(Hazardous Substances Data) |
Product Application of Kojic Acid CAS#501-30-4
Kojic acid is widely utilized in food production. Due to its antioxidant properties, it was initially used to prevent oil rancidity. Recent studies have also demonstrated its antibacterial and insecticidal effects. It is commonly applied as a food preservative, freshness-retaining agent, and color stabilizer, serving as an alternative to conventional chemical preservatives. Kojic acid is extensively used in meat processing for color protection, as well as in the preservation and sterilization of fruits, vegetables, and raw foods. It can also be used as a preservative for cut flowers to extend freshness and shelf life. In addition, kojic acid may help inhibit the formation of nitrosamines from nitrites in cured meat products, which is significant for improving food safety and supporting product upgrades. In agriculture, kojic acid can function as a biopesticide, insecticide, and biofertilizer, helping improve crop yield and productivity when sprayed or applied to plant roots.
Company Profile
Shandong Furuida Chemical Co., Ltd. exists for a single purpose: to make chemical raw material sourcing simpler, more transparent, and more reliable for businesses around the world.
To fulfill this purpose, the company operates as a global start-up chemical foreign trade enterprise based in Shandong's core chemical industrial zone. Self-owned standardized factories provide the foundation for an integrated operation that spans production, quality control, cross-border trade, and global logistics. This integration delivers independent production capacity and the flexibility to respond to evolving market demands.
The company's product portfolio includes basic chemical raw materials, fine intermediates, chemical additives, and rubber/plastic feedstocks—essential inputs for the rubber, plastics, coatings, daily chemicals, building materials, and textile industries. Beyond product supply, the company offers customized solutions and a complete range of foreign trade services, including customs clearance, logistics coordination, and after-sales technical support.
| The company's operating principles: |
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| Factory-direct supply for transparent, stable pricing |
| Full-process quality control for consistent product quality |
| Mature logistics networks for timely delivery |
Serving customers across Asia, Europe, the Americas, and the Middle East, Shandong Furuida Chemical Co., Ltd. is committed to providing high-quality, cost-effective chemical raw materials and professional service to chemical manufacturers, terminal processing plants, and cross-border trading partners.
