10t-oxy-(6at)-4,5,6,6a,7,8,9,11-octahydro-4r,9c-cyclo-pyrrolo[1,2-a]thieno[2,3-f]azepine-5t-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 73136-78-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,3 and 6 respectively; the second part has 2 digits, 7 and 8 respectively. Calculate Digit Verification of CAS Registry Number 73136-78: (7*7)+(6*3)+(5*1)+(4*3)+(3*6)+(2*7)+(1*8)=124 124 % 10 = 4 So 73136-78-4 is a valid CAS Registry Number.