Grumbacher Finest Watercolor Paint, 14 ml/0.47 oz, Alizarin Crimson Alizarin Crimson was the first synthetic organic color, invented in 1869 Has the exact masstone and chemical formula of the original Madder Lake derived from the root of the Madder plant Formulated with premium-grade pigments uniformly combined in a balanced medium Ensures fluid, even washes Excellent tinting strength Perfect for plein air painting Made in USA