139263-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139263-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,6 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 139263-57:
(8*1)+(7*3)+(6*9)+(5*2)+(4*6)+(3*3)+(2*5)+(1*7)=143
143 % 10 = 3
So 139263-57-3 is a valid CAS Registry Number.
InChI:InChI=1/C26H27N5O3.ClH/c27-20-11-9-18-15-19-10-12-21(28)17-25(19)30(24(18)16-20)14-6-2-1-5-13-29-26(32)22-7-3-4-8-23(22)31(33)34;/h3-4,7-12,15-17H,1-2,5-6,13-14H2,(H4,27,28,29,32);1H