68307-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68307-81-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,3,0 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 68307-81:
(7*6)+(6*8)+(5*3)+(4*0)+(3*7)+(2*8)+(1*1)=143
143 % 10 = 3
So 68307-81-3 is a valid CAS Registry Number.
InChI:InChI=1/C30H31NO3.CH4O3S/c1-33-25-13-8-23(9-14-25)28-17-12-22-6-2-3-7-27(22)29(28)30(32)24-10-15-26(16-11-24)34-21-20-31-18-4-5-19-31;1-5(2,3)4/h2-3,6-11,13-16H,4-5,12,17-21H2,1H3;1H3,(H,2,3,4)