870971-34-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 870971-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,0,9,7 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 870971-34:
(8*8)+(7*7)+(6*0)+(5*9)+(4*7)+(3*1)+(2*3)+(1*4)=199
199 % 10 = 9
So 870971-34-9 is a valid CAS Registry Number.