"Yellow 10", also known as Quinoline Yellow WS, is a synthetic azo dye used as a colorant in various applications. It is characterized by its bright yellow hue and is commonly found in the food industry, particularly for coloring beverages, dairy products, and confectionery. The chemical is also used in the pharmaceutical and cosmetic industries for coloring purposes. It is important to note that "Yellow 10" is subject to regulatory approval and usage restrictions in different countries due to potential health concerns, and its use is strictly controlled to ensure safety.
The CAS Registry Mumber 1342-69-4 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 2 respectively; the second part has 2 digits, 6 and 9 respectively. Calculate Digit Verification of CAS Registry Number 1342-69: (6*1)+(5*3)+(4*4)+(3*2)+(2*6)+(1*9)=64 64 % 10 = 4 So 1342-69-4 is a valid CAS Registry Number.