5,12-Naphthacenedione,
8-acetyl-7,8,9,10-tetrahydro-6,8,10,11-tetrahydroxy-7,7-dimethyl-, cis- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 91003-70-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,0 and 3 respectively; the second part has 2 digits, 7 and 0 respectively. Calculate Digit Verification of CAS Registry Number 91003-70: (7*9)+(6*1)+(5*0)+(4*0)+(3*3)+(2*7)+(1*0)=92 92 % 10 = 2 So 91003-70-2 is a valid CAS Registry Number.