34981-26-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34981-26-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,9,8 and 1 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 34981-26:
(7*3)+(6*4)+(5*9)+(4*8)+(3*1)+(2*2)+(1*6)=135
135 % 10 = 5
So 34981-26-5 is a valid CAS Registry Number.
InChI:InChI=1/C25H28O6/c1-13(2)5-6-15(14(3)4)9-18-20(28)11-21(29)24-22(30)12-23(31-25(18)24)17-8-7-16(26)10-19(17)27/h5,7-8,10-11,15,23,26-29H,3,6,9,12H2,1-2,4H3