4-chloro-1,2,7,8,9,10,11,13-octahydro-13-oxo-[1]benzothieno[2',3':4,5]pyrimido[1,2-a]azepine-3-carboxaldehyde is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 299962-60-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,9,6 and 2 respectively; the second part has 2 digits, 6 and 0 respectively. Calculate Digit Verification of CAS Registry Number 299962-60: (8*2)+(7*9)+(6*9)+(5*9)+(4*6)+(3*2)+(2*6)+(1*0)=220 220 % 10 = 0 So 299962-60-0 is a valid CAS Registry Number.