81851-82-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81851-82-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,5 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81851-82:
(7*8)+(6*1)+(5*8)+(4*5)+(3*1)+(2*8)+(1*2)=143
143 % 10 = 3
So 81851-82-3 is a valid CAS Registry Number.
InChI:InChI=1/C29H37N5O7/c1-17(2)13-24(29(40)41)34-28(39)23(15-19-7-5-4-6-8-19)33-26(37)18(3)32-25(36)16-31-27(38)22(30)14-20-9-11-21(35)12-10-20/h4-12,17,22-24,35H,3,13-16,30H2,1-2H3,(H,31,38)(H,32,36)(H,33,37)(H,34,39)(H,40,41)/t22-,23-,24-/m0/s1