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164790-28-7

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164790-28-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 164790-28-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,7,9 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 164790-28:
(8*1)+(7*6)+(6*4)+(5*7)+(4*9)+(3*0)+(2*2)+(1*8)=157
157 % 10 = 7
So 164790-28-7 is a valid CAS Registry Number.

164790-28-7Relevant articles and documents

A facile method for the synthesis of benzothiacrown ether formyl derivatives

Fedorova, Olga A.,Vedernikov, Artem I.,Yescheulova, Olga V.,Pershina, Yulia V.,Tsapenko, Pavel V.,Gromov, Sergey P.

, p. 1909 - 1915 (2007/10/03)

A facile route to the formyl derivatives of benzothiacrown ethers with different combinations of O and S heteroatoms in the macrocycle involving ring closure reactions of substituted benzaldehydes with dithiols was developed. The effects of alkali metal cations and solvent were studied.

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