1,5-Dimethyl-3,7-bis(hydroxymethyl)-1,2,3,4,5,6,7,8-octahydro-anthracen is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 23189-69-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,1,8 and 9 respectively; the second part has 2 digits, 6 and 9 respectively. Calculate Digit Verification of CAS Registry Number 23189-69: (7*2)+(6*3)+(5*1)+(4*8)+(3*9)+(2*6)+(1*9)=117 117 % 10 = 7 So 23189-69-7 is a valid CAS Registry Number.