27738-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27738-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,7,3 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 27738-90:
(7*2)+(6*7)+(5*7)+(4*3)+(3*8)+(2*9)+(1*0)=145
145 % 10 = 5
So 27738-90-5 is a valid CAS Registry Number.