(5aS,6R,9S,9aS)-1,3,5a,6,7,8,9,9a-octahydro-6-(1-methylethyl)-1-oxospiro-(2-benzoxepine-9,2'-oxirane)-4-carbaldehyde is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 191987-13-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,9,8 and 7 respectively; the second part has 2 digits, 1 and 3 respectively. Calculate Digit Verification of CAS Registry Number 191987-13: (8*1)+(7*9)+(6*1)+(5*9)+(4*8)+(3*7)+(2*1)+(1*3)=180 180 % 10 = 0 So 191987-13-0 is a valid CAS Registry Number.