1237797-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1237797-49-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,7,7,9 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1237797-49:
(9*1)+(8*2)+(7*3)+(6*7)+(5*7)+(4*9)+(3*7)+(2*4)+(1*9)=197
197 % 10 = 7
So 1237797-49-7 is a valid CAS Registry Number.