A pure natural food colorant with strong tinting power, excellent heat resistance, and excellent light resistance.

Uses

Used in manufacturing turmeric test paper, pH 8-9; acid-base indicator for boron determination, pH 7.8 (yellow) to 9.2 (reddish-brown). Colorimetric reaction for measuring beryllium, zirconium, and magnesium, borates, and reagents. A natural phenolic substance with anti-tumor and anti-inflammatory properties, it also possesses antioxidant properties and can induce apoptosis in cancer cells.