Factory Supply D-(-)-pantolactone with the CAS number 599-04-2 is a high - quality chemical product. It is known for its specific stereochemistry, the D-(-) form. The chemical formula of D-(-)-pantolactone is C₆H₁₀O₃. Its molecular weight is approximately 130.14 g/mol.
This product is usually presented as a white to off - white crystalline powder. It has a characteristic odor. The melting point of D-(-)-pantolactone is around 85 - 87 °C. It is soluble in water, ethanol, and other common organic solvents. Our factory ensures high - purity supply, with a purity typically above 99%, ensuring reliable performance in various applications.
D-(-)-pantolactone is widely used in the pharmaceutical industry. It serves as a key intermediate in the synthesis of D-pantothenic acid and its derivatives. D-pantothenic acid, also known as vitamin B5, is essential for the metabolism of carbohydrates, fats, and proteins in the human body. Therefore, D-(-)-pantolactone plays a crucial role in the production of vitamin B5 supplements and pharmaceutical formulations related to vitamin B5.
In the cosmetic industry, it is used as an additive in skin - care products. Its moisturizing properties help to keep the skin hydrated and improve the skin's texture. It can also enhance the stability and efficacy of other active ingredients in cosmetics.
Moreover, in the food industry, it can be used as a nutrient fortifier. It can be added to certain food products to increase their nutritional value, especially in products targeted at consumers with high - energy requirements or specific dietary needs.
When using D-(-)-pantolactone in pharmaceutical synthesis, it should be handled in a well - ventilated laboratory environment following strict safety protocols. Wear appropriate personal protective equipment, such as gloves and goggles. The reaction conditions, including temperature, pressure, and reaction time, need to be carefully controlled according to the specific synthesis route. Usually, it is added gradually to the reaction mixture under stirring to ensure uniform reaction.
In the cosmetic industry, it can be incorporated into cosmetic formulations during the mixing process. The appropriate amount should be determined based on the specific formulation requirements. Generally, it is recommended to conduct small - scale experiments first to optimize the dosage and ensure the stability and performance of the final product.
For food applications, it should comply with relevant food safety regulations. The addition amount should be within the permitted range. It can be dissolved in a suitable solvent or directly mixed with other food ingredients during the manufacturing process.
**Pharmaceutical Synthesis Case**
A pharmaceutical company was synthesizing D-pantothenic acid using D-(-)-pantolactone. They added 100 grams of D-(-)-pantolactone with a purity of 99% to a reaction flask containing 500 ml of a specific solvent. The reaction was carried out at a temperature of 60 °C for 5 hours under continuous stirring. After the reaction, they obtained a high - yield of D-pantothenic acid with a purity of over 98%, which met the requirements for pharmaceutical use. This case shows the reliability of our D-(-)-pantolactone in pharmaceutical synthesis.
**Cosmetic Case**
A cosmetic brand developed a new moisturizing lotion. They added 2% D-(-)-pantolactone to their formulation. Through consumer testing, they found that the lotion significantly improved the skin's moisture content. Consumers reported softer and smoother skin after using the product for two weeks. This indicates the effectiveness of D-(-)-pantolactone in cosmetic applications.
**Food Industry Case**
A food manufacturer added D-(-)-pantolactone to their energy - boosting sports drinks. By adding 0.1% of D-(-)-pantolactone, they enhanced the nutritional value of the drink. Consumer feedback showed that the drink was well - received, especially among athletes who felt more
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