91197-54-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91197-54-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,9 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91197-54:
(7*9)+(6*1)+(5*1)+(4*9)+(3*7)+(2*5)+(1*4)=145
145 % 10 = 5
So 91197-54-5 is a valid CAS Registry Number.
InChI:InChI=1/C36H39NO11/c1-17-14-26-34(45)18(2)30(47-32(44)21-10-6-8-12-24(21)37-31(43)22-11-7-9-13-25(22)40)36(48-19(3)39)27(33(36,4)5)23(34)15-20(16-38)29(42)35(26,46)28(17)41/h6-15,18,23,26-27,29-30,38,40,42,45-46H,16H2,1-5H3,(H,37,43)/t18-,23+,26+,27-,29-,30-,34-,35-,36-/m1/s1