858437-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 858437-77-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,8,4,3 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 858437-77:
(8*8)+(7*5)+(6*8)+(5*4)+(4*3)+(3*7)+(2*7)+(1*7)=221
221 % 10 = 1
So 858437-77-1 is a valid CAS Registry Number.