1-acetyl-3-benzyl-1,2,3,4,5,6,7,8-octahydro-benzo[4,5]thieno[2,3-d]pyrimidine is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 57262-78-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,6 and 2 respectively; the second part has 2 digits, 7 and 8 respectively. Calculate Digit Verification of CAS Registry Number 57262-78: (7*5)+(6*7)+(5*2)+(4*6)+(3*2)+(2*7)+(1*8)=139 139 % 10 = 9 So 57262-78-9 is a valid CAS Registry Number.