1009770-32-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1009770-32-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,9,7,7 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1009770-32:
(9*1)+(8*0)+(7*0)+(6*9)+(5*7)+(4*7)+(3*0)+(2*3)+(1*2)=134
134 % 10 = 4
So 1009770-32-4 is a valid CAS Registry Number.