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257940-10-6

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257940-10-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 257940-10-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,4 and 0 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 257940-10:
(8*2)+(7*5)+(6*7)+(5*9)+(4*4)+(3*0)+(2*1)+(1*0)=156
156 % 10 = 6
So 257940-10-6 is a valid CAS Registry Number.

257940-10-6Downstream Products

257940-10-6Relevant articles and documents

Coordination behaviour of nitrogen and oxygen donor ligands towards stannic ion

Singh, Har Lal,Varshney,Varshney

, p. 209 - 216 (2007/10/03)

Synthesis and characterization of some new coordination compounds of organotin(IV) with nitrogen and oxygen donor ligands have been described. These have been obtained by the reactions of dibutyltinoxide with monobasic bidentate ligands derived by the condensation of 2-acetylfuran or 2-acetylthiophene with glycine, β-alanine, valine, leucine and tryptophan in 1:2 stoichiometry. Suitable structures based on IR, multinuclear magnetic resonance (1H, 13C and 119Sn) spectral studies have been indicated for these new derivatives.

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