901187-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 901187-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,1,1,8 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 901187-90:
(8*9)+(7*0)+(6*1)+(5*1)+(4*8)+(3*7)+(2*9)+(1*0)=154
154 % 10 = 4
So 901187-90-4 is a valid CAS Registry Number.