158745-44-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158745-44-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,7,4 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 158745-44:
(8*1)+(7*5)+(6*8)+(5*7)+(4*4)+(3*5)+(2*4)+(1*4)=169
169 % 10 = 9
So 158745-44-9 is a valid CAS Registry Number.
InChI:InChI=1/C15H13N2O5.3C4H9.Sn/c18-12-6-7-13(19)17(12)8-9-22-14(20)10-16-15(21)11-4-2-1-3-5-11;3*1-3-4-2;/h1-2,4-7H,8-10H2,(H,16,21);3*1,3-4H2,2H3;/rC27H40N2O5Sn/c1-4-7-17-35(18-8-5-2,19-9-6-3)23-12-10-11-22(20-23)27(33)28-21-26(32)34-16-15-29-24(30)13-14-25(29)31/h10-14,20H,4-9,15-19,21H2,1-3H3,(H,28,33)