307554-61-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 307554-61-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,7,5,5 and 4 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 307554-61:
(8*3)+(7*0)+(6*7)+(5*5)+(4*5)+(3*4)+(2*6)+(1*1)=136
136 % 10 = 6
So 307554-61-6 is a valid CAS Registry Number.