1237784-97-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1237784-97-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,7,7,8 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1237784-97:
(9*1)+(8*2)+(7*3)+(6*7)+(5*7)+(4*8)+(3*4)+(2*9)+(1*7)=192
192 % 10 = 2
So 1237784-97-2 is a valid CAS Registry Number.