27687-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27687-39-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,6,8 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 27687-39:
(7*2)+(6*7)+(5*6)+(4*8)+(3*7)+(2*3)+(1*9)=154
154 % 10 = 4
So 27687-39-4 is a valid CAS Registry Number.