156638-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156638-57-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,6,3 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 156638-57:
(8*1)+(7*5)+(6*6)+(5*6)+(4*3)+(3*8)+(2*5)+(1*7)=162
162 % 10 = 2
So 156638-57-2 is a valid CAS Registry Number.
InChI:InChI=1/C28H23F2N3O14/c29-14-1-2-15(32(9-21(34)35)10-22(36)37)26(25(14)30)45-4-3-44-18-5-13-6-19(27-31-8-20(47-27)28(42)43)46-17(13)7-16(18)33(11-23(38)39)12-24(40)41/h1-2,5-8H,3-4,9-12H2,(H,34,35)(H,36,37)(H,38,39)(H,40,41)(H,42,43)