32781-74-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 32781-74-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,7,8 and 1 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 32781-74:
(7*3)+(6*2)+(5*7)+(4*8)+(3*1)+(2*7)+(1*4)=121
121 % 10 = 1
So 32781-74-1 is a valid CAS Registry Number.
InChI:InChI=1/C22H18Br4N4O9S2/c23-8-14(25)21(32)27-11-2-1-10-5-18(41(37,38)39)19(20(31)13(10)6-11)30-29-16-7-12(28-22(33)15(26)9-24)3-4-17(16)40(34,35)36/h1-7,14-15,29H,8-9H2,(H,27,32)(H,28,33)(H,34,35,36)(H,37,38,39)/b30-19-