956905-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 956905-18-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,6,9,0 and 5 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 956905-18:
(8*9)+(7*5)+(6*6)+(5*9)+(4*0)+(3*5)+(2*1)+(1*8)=213
213 % 10 = 3
So 956905-18-3 is a valid CAS Registry Number.