158721-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158721-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,7,2 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 158721-72:
(8*1)+(7*5)+(6*8)+(5*7)+(4*2)+(3*1)+(2*7)+(1*2)=153
153 % 10 = 3
So 158721-72-3 is a valid CAS Registry Number.
InChI:InChI=1/C38H53NO9S2.Na/c1-22(2)7-6-8-23(3)30-11-12-31-29-10-9-25-19-26(13-15-37(25,4)32(29)14-16-38(30,31)5)48-36(41)39-33-20-27(49(42,43)44)17-24-18-28(50(45,46)47)21-34(40)35(24)33;/h9,17-18,20-23,26,29-32,40H,6-8,10-16,19H2,1-5H3,(H,39,41)(H,42,43,44)(H,45,46,47);/q;+1/p-1/t23-,26+,29?,30-,31?,32?,37+,38-;/m1./s1