61916-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 61916-42-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,9,1 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 61916-42:
(7*6)+(6*1)+(5*9)+(4*1)+(3*6)+(2*4)+(1*2)=125
125 % 10 = 5
So 61916-42-5 is a valid CAS Registry Number.
InChI:InChI=1/2C20H14N2O5S.Cr.3Na/c2*23-16-10-8-12-4-1-2-5-13(12)19(16)21-22-20-15-6-3-7-18(28(25,26)27)14(15)9-11-17(20)24;;;;/h2*1-11,23-24H,(H,25,26,27);;;;/q;;+3;3*+1/p-6/b2*22-21+;;;;