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74378-21-5

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74378-21-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74378-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,3,7 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 74378-21:
(7*7)+(6*4)+(5*3)+(4*7)+(3*8)+(2*2)+(1*1)=145
145 % 10 = 5
So 74378-21-5 is a valid CAS Registry Number.

74378-21-5Relevant articles and documents

Synthesis of calixresorcarenes using magnetic poly triazine-benzene sulfonamide-SO3H

Alavinia, Sedigheh,Gharehkhani, Alireza,Ghorbani-Vaghei, Ramin

, p. 37514 - 37527 (2021/12/07)

The purpose of this work is to develop a magnetically recyclable immobilized base catalyst for the green synthesis of calixresorcarenes. To achieve this, poly triazine-benzene sulfonamide (PTBSA) has been coated on magnetic Fe3O4 nanoparticles and subsequ

Experimental comparative study of dynamic behavior in solution phase of C-Tetra(phenyl)resorcin[4]arene and C-Tetra(phenyl)pyrogallol[4]arene

Casas-Hinestroza, José Luis,Suazo, Miguel ángel Vela,Villamil, Mauricio Maldonado

, (2020/05/28)

The synthesis of phenyl-resorcinarenes and pyrogallolarenes is known to produce a conformational mixture of cone and chair isomers. Depending on the synthesis conditions the composition of the conformational mixture is variable; however, the cone conformer is the greatest proportion of phenyl-resorcin[4]arenes and chair conformer of pyrogallol[4]arenes. The experimental evidence suggests that phenyl-substituted resorcinarene and pyrogallolarene exist as a dynamic boat in solution.

Synthesis, luminescence, and electrochemical studies of a new series of octanuclear ruthenium(II) complexes of tolylterpyridine appended calixresorcarenes

Senthan, Selvam Amudhan,Alexander, Vedamanickam

, p. 14813 - 14822 (2015/08/24)

A new series of octanuclear Ru(ii) complexes of tolylterpyridine appended calixresorcarenes [{Ru(ttpy)}8(L1)](PF6)16 (4), [{Ru(ttpy)}8(L2)](PF6)16 (5), and [{Ru(ttpy)}8(L3)](PFs

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