140942-13-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140942-13-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,9,4 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 140942-13:
(8*1)+(7*4)+(6*0)+(5*9)+(4*4)+(3*2)+(2*1)+(1*3)=108
108 % 10 = 8
So 140942-13-8 is a valid CAS Registry Number.
InChI:InChI=1/C32H22N6O14S4.4Na/c39-31-23(15-27(55(47,48)49)21-3-1-11-33-29(21)31)37-35-19-9-7-17(25(13-19)53(41,42)43)5-6-18-8-10-20(14-26(18)54(44,45)46)36-38-24-16-28(56(50,51)52)22-4-2-12-34-30(22)32(24)40;;;;/h1-16,35-36H,(H,41,42,43)(H,44,45,46)(H,47,48,49)(H,50,51,52);;;;/q;4*+1/p-4/b6-5+,37-23-,38-24-;;;;