3-methyl-4H-thieno[3,2-b]pyridine-5,7-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 1356016-32-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,6,0,1 and 6 respectively; the second part has 2 digits, 3 and 2 respectively. Calculate Digit Verification of CAS Registry Number 1356016-32: (9*1)+(8*3)+(7*5)+(6*6)+(5*0)+(4*1)+(3*6)+(2*3)+(1*2)=134 134 % 10 = 4 So 1356016-32-4 is a valid CAS Registry Number.