131802-66-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131802-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,8,0 and 2 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 131802-66:
(8*1)+(7*3)+(6*1)+(5*8)+(4*0)+(3*2)+(2*6)+(1*6)=99
99 % 10 = 9
So 131802-66-9 is a valid CAS Registry Number.
InChI:InChI=1/C26H28O2/c1-25-12-10-20(27)16-19(25)15-18(14-17-6-4-3-5-7-17)24-21-8-9-23(28)26(21,2)13-11-22(24)25/h3-7,10,12,15-16,21-22,24H,8-9,11,13-14H2,1-2H3/t21-,22-,24-,25-,26-/m0/s1