93840-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93840-65-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,8,4 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 93840-65:
(7*9)+(6*3)+(5*8)+(4*4)+(3*0)+(2*6)+(1*5)=154
154 % 10 = 4
So 93840-65-4 is a valid CAS Registry Number.
InChI:InChI=1/C21H16N3O4.C2H6O4S/c1-2-22-20-13-16(24(27)28)9-11-18(20)17-10-8-15(23(25)26)12-19(17)21(22)14-6-4-3-5-7-14;1-2-6-7(3,4)5/h3-13H,2H2,1H3;2H2,1H3,(H,3,4,5)/q+1;/p-1
93840-65-4Relevant articles and documents
Improvement of ways to obtain ethidium bromide and synthesis of ethidium ethyl sulfate, a new fluorescent dye for detection of nucleic acids
Osadchii,Shubin,Kozlova,Varlamenko,Filipenko,Boyarskikh
, p. 1541 - 1548 (2012/01/14)
Two methods for synthesis of ethidium bromide, a fluorescent dye widely used in molecular biology, were improved. An analog of ethidium bromide, ethidium ethyl sulfate, was synthesized.
