397845-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 397845-49-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,7,8,4 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 397845-49:
(8*3)+(7*9)+(6*7)+(5*8)+(4*4)+(3*5)+(2*4)+(1*9)=217
217 % 10 = 7
So 397845-49-7 is a valid CAS Registry Number.
InChI:InChI=1/C17H11Br2NO/c18-14-5-1-11(2-6-14)13-9-16(20-17(21)10-13)12-3-7-15(19)8-4-12/h1-10H,(H,20,21)