27189-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27189-31-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,1,8 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 27189-31:
(7*2)+(6*7)+(5*1)+(4*8)+(3*9)+(2*3)+(1*1)=127
127 % 10 = 7
So 27189-31-7 is a valid CAS Registry Number.
InChI:InChI=1/C20H23BrN6O8/c1-3-35-14-10-16(20(22-12(2)30)17(11-14)25(4-6-28)5-7-29)23-24-19-15(21)8-13(26(31)32)9-18(19)27(33)34/h8-11,28-29H,3-7H2,1-2H3,(H,22,30)/b24-23+