3520-11-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3520-11-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,2 and 0 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3520-11:
(6*3)+(5*5)+(4*2)+(3*0)+(2*1)+(1*1)=54
54 % 10 = 4
So 3520-11-4 is a valid CAS Registry Number.
InChI:InChI=1/C34H48O9/c1-18(35)42-22-15-21-20(30(5,6)28(22)39)11-12-24-31(7)16-23(43-19(2)36)27(32(31,8)17-26(38)33(21,24)9)34(10,41)25(37)13-14-29(3,4)40/h11,13-14,21-24,27,40-41H,12,15-17H2,1-10H3/b14-13+/t21-,22+,23+,24+,27+,31+,32-,33+,34+/m1/s1