1042906-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1042906-99-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,2,9,0 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1042906-99:
(9*1)+(8*0)+(7*4)+(6*2)+(5*9)+(4*0)+(3*6)+(2*9)+(1*9)=139
139 % 10 = 9
So 1042906-99-9 is a valid CAS Registry Number.