Pigment Red 57.1 is a red dye created from NN and CC chromophore groups in a synthetic acid dye. This hue has a melting point of more than 300 degrees Celsius and is water soluble, making it suitable for usage in cosmetics, pharmaceuticals, and food. It's a deep, dark red. It's most commonly seen in heat-treated fermented foods. Pigment Red 57.1 is used to make food more appealing, flavorful, and informative, among other things. Color loss can be caused by light, air, temperature variations, moisture, and storage conditions.