3-chloro-2,2-dimethylpropanenitrile is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 131221-78-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,2 and 1 respectively; the second part has 2 digits, 7 and 8 respectively. Calculate Digit Verification of CAS Registry Number 131221-78: (8*1)+(7*3)+(6*1)+(5*2)+(4*2)+(3*1)+(2*7)+(1*8)=78 78 % 10 = 8 So 131221-78-8 is a valid CAS Registry Number.