138898-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138898-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,9 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138898-72:
(8*1)+(7*3)+(6*8)+(5*8)+(4*9)+(3*8)+(2*7)+(1*2)=193
193 % 10 = 3
So 138898-72-3 is a valid CAS Registry Number.
InChI:InChI=1/C24H32O7/c1-15-4-7-18-23(2,17(15)6-5-16-11-13-30-22(16)29)12-10-19(25)24(18,3)14-31-21(28)9-8-20(26)27/h5,11,13,17-19,25H,1,4,6-10,12,14H2,2-3H3,(H,26,27)/b16-5+/t17-,18-,19+,23-,24-/m0/s1