137769-83-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137769-83-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,7,6 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137769-83:
(8*1)+(7*3)+(6*7)+(5*7)+(4*6)+(3*9)+(2*8)+(1*3)=176
176 % 10 = 6
So 137769-83-6 is a valid CAS Registry Number.