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40559-90-8

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40559-90-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40559-90-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,5,5 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 40559-90:
(7*4)+(6*0)+(5*5)+(4*5)+(3*9)+(2*9)+(1*0)=118
118 % 10 = 8
So 40559-90-8 is a valid CAS Registry Number.

40559-90-8Relevant articles and documents

Synthesis, structure, theoretical calculations and biological activity of sulfonate active ester new derivatives

Ghazzali, Mohamed,Khattab, Sherine A.N.,Elnakady, Yasser A.,Al-Mekhlafi, Fahd A.,Al-Farhan, Khalid,El-Faham, Ayman

, p. 147 - 152 (2013)

A series of naphthyl and tolyl sulfonate ester were synthesized and characterized by H NMR. X-ray single crystal diffraction experiments established the molecular structure of three new sulfonate esters derivatives, and spectral data agree with these in solution. The observed hydrogen bonding is discussed on the basis of crystal structural analyses and DFT/MP2 geometry optimization quantum calculations. Antimicrobial activities were screened for selected compounds against three human cancer cell lines and Mosquito Culex pipiens larvae.

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