"Blue 1 Lake", also known as Brilliant Blue FCF, is a synthetic azo dye used as a colorant in various applications, including food, cosmetics, and pharmaceuticals. It is characterized by its bright blue color and is known for its high solubility in water, which makes it suitable for coloring aqueous solutions. The chemical is classified as a food additive and is regulated by agencies such as the FDA and EU, with specific guidelines on its usage levels and safety. It is important to note that while it is widely used, there are ongoing discussions and regulations regarding its safety, and it is subject to change based on new scientific findings.
The CAS Registry Mumber 1341-91-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,4 and 1 respectively; the second part has 2 digits, 9 and 1 respectively. Calculate Digit Verification of CAS Registry Number 1341-91: (6*1)+(5*3)+(4*4)+(3*1)+(2*9)+(1*1)=59 59 % 10 = 9 So 1341-91-9 is a valid CAS Registry Number.