215957-58-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 215957-58-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,9,5 and 7 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 215957-58:
(8*2)+(7*1)+(6*5)+(5*9)+(4*5)+(3*7)+(2*5)+(1*8)=157
157 % 10 = 7
So 215957-58-7 is a valid CAS Registry Number.