**D-(-)-Salicin: A Versatile Natural Compound for Multiple Industries**  

**Definition**  

D-(-)-Salicin (CAS 138-52-3) is a natural glycoside derived from willow bark and other plants. It is a white crystalline powder with a molecular formula of C13H18O7 and a molecular weight of 286.28. Known for its high purity (≥99%) and water solubility, it is widely used in research and industrial applications.  

**Key Functions**  

- **Anti-inflammatory**: D-(-)-Salicin is a precursor to salicylic acid, which exhibits anti-inflammatory and analgesic properties.  

- **Antioxidant**: It helps reduce oxidative stress by scavenging free radicals.  

- **Metabolic Regulation**: Studies suggest its potential role in modulating metabolic pathways and improving insulin sensitivity.  

**Applications**  

1. **Pharmaceuticals**: Used in the development of anti-inflammatory and pain-relief medications, as well as in research on metabolic disorders.  

2. **Cosmetics**: Incorporated into skincare products for its anti-inflammatory and antioxidant benefits, helping to soothe and protect the skin.  

3. **Research**: Widely used as a standard reference material in analytical chemistry and biochemical studies due to its high purity and stability.