Polychlorobutadiene (PCBD) is a group of chemically-related compounds derived from butadiene, a hydrocarbon with the formula C4H6. These compounds are characterized by the presence of multiple chlorine atoms attached to the butadiene backbone, which can vary in number and position, leading to different isomers and derivatives. PCBDs are synthetically produced and have been used in various industrial applications, such as in rubber production and as a flame retardant. However, due to their potential health risks and environmental persistence, the production and use of many PCBDs have been restricted or banned in several countries. They are known to be toxic and can cause adverse effects on human health, including irritation, respiratory issues, and long-term health problems such as cancer and reproductive disorders. Additionally, PCBDs are persistent in the environment, meaning they do not break down easily and can accumulate in ecosystems, posing a risk to wildlife and the food chain.
The CAS Registry Mumber 9063-70-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,6 and 3 respectively; the second part has 2 digits, 7 and 0 respectively. Calculate Digit Verification of CAS Registry Number 9063-70: (6*9)+(5*0)+(4*6)+(3*3)+(2*7)+(1*0)=101 101 % 10 = 1 So 9063-70-1 is a valid CAS Registry Number.