690647-49-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690647-49-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,6,4 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 690647-49:
(8*6)+(7*9)+(6*0)+(5*6)+(4*4)+(3*7)+(2*4)+(1*9)=195
195 % 10 = 5
So 690647-49-5 is a valid CAS Registry Number.