2-nitrothiophene-3,4-dicarboxylic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 932032-15-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,2,0,3 and 2 respectively; the second part has 2 digits, 1 and 5 respectively. Calculate Digit Verification of CAS Registry Number 932032-15: (8*9)+(7*3)+(6*2)+(5*0)+(4*3)+(3*2)+(2*1)+(1*5)=130 130 % 10 = 0 So 932032-15-0 is a valid CAS Registry Number.