(2S,3S,4R,5R,6S,7R,8R)-9-(tert-Butyl-diphenyl-silanyloxy)-2,4,6,8-tetramethyl-nonane-1,3,5,7-tetraol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 139016-77-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,0,1 and 6 respectively; the second part has 2 digits, 7 and 7 respectively. Calculate Digit Verification of CAS Registry Number 139016-77: (8*1)+(7*3)+(6*9)+(5*0)+(4*1)+(3*6)+(2*7)+(1*7)=126 126 % 10 = 6 So 139016-77-6 is a valid CAS Registry Number.