1006561-50-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1006561-50-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,6,5,6 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1006561-50:
(9*1)+(8*0)+(7*0)+(6*6)+(5*5)+(4*6)+(3*1)+(2*5)+(1*0)=107
107 % 10 = 7
So 1006561-50-7 is a valid CAS Registry Number.