1227750-69-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1227750-69-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,7,5 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1227750-69:
(9*1)+(8*2)+(7*2)+(6*7)+(5*7)+(4*5)+(3*0)+(2*6)+(1*9)=157
157 % 10 = 7
So 1227750-69-7 is a valid CAS Registry Number.