81761-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81761-83-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,6 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81761-83:
(7*8)+(6*1)+(5*7)+(4*6)+(3*1)+(2*8)+(1*3)=143
143 % 10 = 3
So 81761-83-3 is a valid CAS Registry Number.
InChI:InChI=1/C26H31N5O3S/c1-30-25-23(26(32)28-18-10-17-27-19-11-4-2-5-12-19)29-31(20-13-6-3-7-14-20)24(25)21-15-8-9-16-22(21)35(30,33)34/h3,6-9,13-16,19,27H,2,4-5,10-12,17-18H2,1H3,(H,28,32)