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135672-54-7

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135672-54-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135672-54-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,6,7 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 135672-54:
(8*1)+(7*3)+(6*5)+(5*6)+(4*7)+(3*2)+(2*5)+(1*4)=137
137 % 10 = 7
So 135672-54-7 is a valid CAS Registry Number.

135672-54-7Relevant articles and documents

Synthese von Di- und Tri(o-phenylendiamin)-Liganden

Hahn, Ekkehardt F.,Dittler-Klingemann, Andreas

, p. 779 - 782 (2007/10/02)

The o-phenylenediamine ligand trisamine, TRIPACEN (4) and bisamine, DIPACEN (8) are obtained by Williamson coupling of the potassium salt of 2,3-dinitrophenole (1) to tris(3-chlorpropyl)amine (2) or benzylbis(3-chlorpropyl)amine (5), respectively, followed by reduction of the nitro functions with Sn/HCl or Pd(OH)2/H2.

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