61991-08-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 61991-08-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,9,9 and 1 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 61991-08:
(7*6)+(6*1)+(5*9)+(4*9)+(3*1)+(2*0)+(1*8)=140
140 % 10 = 0
So 61991-08-0 is a valid CAS Registry Number.
InChI:InChI=1/C20H29N7O8/c21-9-3-1-2-8(9)16(31)25-13(18(32)33)11-4-20(34,12(29)6-28)14(30)17(35-11)27-7-24-10-5-23-19(22)26-15(10)27/h5,7-9,11-14,17,28-30,34H,1-4,6,21H2,(H,25,31)(H,32,33)(H2,22,23,26)