207691-33-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 207691-33-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,6,9 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 207691-33:
(8*2)+(7*0)+(6*7)+(5*6)+(4*9)+(3*1)+(2*3)+(1*3)=136
136 % 10 = 6
So 207691-33-6 is a valid CAS Registry Number.