1029773-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1029773-40-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,9,7,7 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1029773-40:
(9*1)+(8*0)+(7*2)+(6*9)+(5*7)+(4*7)+(3*3)+(2*4)+(1*0)=157
157 % 10 = 7
So 1029773-40-7 is a valid CAS Registry Number.