4H-Pyran-4-one, Promotion Season Now in Store and Free Sample for Testing with Factory Price
- Chemical Name: Kojic acid
- CAS No.: 501-30-4
- Molecular Fomula: ：C6H6O4
- Molecular weight：142.11
- Appearance:Colorless, white powder
- Sample：Available
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Description of 4H-Pyran-4-one
- Kojic acid is a chelation agent produced by several species of fungi, especially Aspergillus oryzae, which has the Japanese common name koji. Kojic acid is a by-product in the fermentation process of malting rice, for use in the manufacturing of sake, the Japanese rice wine. It is a mild inhibitor of the formation of pigment in plant and animal tissues, and is used in food and cosmetics to preserve or change colors of substances. It forms a bright red complex with ferric ions.
Basic Info of 4H-Pyran-4-one
Basic Info
Numbering system
Properties
Safety Info
Basic Info
| Chemical Name | kojic acid |
| Synonyms | 5-Hydroxy-2-(hydroxymethyl)-4H-pyran-4-one;5-Hydroxy-2-hydroxymethyl-4H-4-pyranone;5-hydroxy-2-(hydroxmetyl)-4H-pyran-4-one;3-hydroxy-6-hydroxymethyl-4H-pyran-4-one;5-Hydroxy-2-(hydroxymethyl)-4-pyrone;Expand |
| CAS No. | 501-30-4 |
| Molecular Formula | C6H6O4 |
| Molecular Weight | 142.10900 |
| PSA | 70.67000 |
| LogP | -0.16230 |
Numbering system
| UNII | 6K23F1TT52 |
Properties
| Appearance & Physical State | Tan powder |
| Density | 1.542 g/cm3 |
| Boiling Point | 401.7ºC at 760 mmHg |
| Melting Point | 151-156ºC |
| Flash Point | 179.9ºC |
| Water Solubility | SOLUBLE |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Storage Condition | Store in a cool, dry place. Store in a tightly closed container. |
Safety Info
| RTECS | UQ0875000 |
| Safety Statements | S24/25 |
| HS Code | 29329995 |
| WGK Germany | 3 |
| Risk Statements | R40 |
| Hazard Codes | Xn |
What is Kojic acid?
- With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is 4H-Pyran-4-one which has developed particularly rapidly in recent years. Do you know about 4H-Pyran-4-one?
- The official answer：It is an organic acid with an antibacterial effect produced by aerobic fermentation of glucose by Candida trituberculatus at 30-32°C. The molecular structure is γ-pyrone with substituent group, among the γ-pyrone compounds existing in nature, the only famous compounds are uric acid and maltol. In 1953, Arnstela (surface fermentation) and 1971, Makio Kitada (deep fermentation) proved that triglyceride is formed by direct oxidation and dehydration of glucose without carbon frame breakage, using isotope tracing techniques.
What’s the application of Kojic acid?
- (1) Triglyceride has a very wide range of applications in food production. In the past, due to its antioxidant properties, citric acid was used in fats and oils to prevent rancidity. In recent years, the literature has reported that uric acid has a bactericidal and anti-insect effect, and it has obvious effects as a preservative, preservative, and color preservative for food, and it can be widely used as a substitute for chemical preservatives in meat food processing and color preservation, fruit and vegetable preservation, and sterilization and preservation of raw food, and it can also be used as a cut flower preservative to extend the preservation and shelf life of flowers. The addition of citric acid in food does not affect its taste, flavor, and texture, but also prevents the conversion of nitrite into carcinogenic nitrosamines, which is very important for the upgrading of cured meat products. In agricultural production, tragic acid can be used as a biopesticide, pesticide, and biofertilizer, whether sprayed or root-applied, with a significant effect on increasing the yield and income of food and vegetables. (2)As the raw material of food flavor enhancer maltol and ethyl maltol. (3)Tric acid can be used as raw material for the production of cephalosporin antibiotics. (4) In addition to its wide application in food processing, citric acid also has good beauty effects of removing spots and whitening. Triglyceride and its derivatives such as acetate have certain antibacterial properties, no one-time irritation and cumulative stimulation to the skin, and can be used as a preservative for cosmetics and food. It can strongly absorb ultraviolet rays and can be used alone or in combination with various sunscreen-type products such as soaps. It can treat and prevent the formation of skin discoloration such as liver spots, and the dosage is 1~2.5% with obvious effect. Helps to maintain humidity and reduce skin wrinkles. Used in hair products can remove dandruff. (5) Tric acid can be used for flavoring and manufacturing larch bark and ethyl larch bark as raw material.
Conclusion
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