27631-58-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27631-58-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,6,3 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 27631-58:
(7*2)+(6*7)+(5*6)+(4*3)+(3*1)+(2*5)+(1*8)=119
119 % 10 = 9
So 27631-58-9 is a valid CAS Registry Number.