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474318-53-1

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474318-53-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 474318-53-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,4,3,1 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 474318-53:
(8*4)+(7*7)+(6*4)+(5*3)+(4*1)+(3*8)+(2*5)+(1*3)=161
161 % 10 = 1
So 474318-53-1 is a valid CAS Registry Number.

474318-53-1Upstream product

474318-53-1Relevant articles and documents

Selective reduction of the nitro group in the presence of the azoxy group. Synthesis of 2-(alkyl-NNO-azoxy)anilines

Lipilin, D. L.,Churakov, A. M.,Strelenko, Yu. A.,Tartakovsky, V. A.

, p. 311 - 318 (2007/10/03)

Tin(II) chloride selectively reduces the aromatic nitro group to the amino group, the azoxy group remaining intact. This allows the preparation of 2-(R-NNO-azoxy)anilines from 2-(R-NNO-azoxy)nitrobenzenes bearing electron-donating or weak electron-withdrawing substituents (Me or Br) in the benzene ring and alkyl substituents at the distal N atom of the azoxy group. The presence of electron-withdrawing substituents at the azoxy group (for example, CO2Et) leads to a change in the direction of the reaction resulting in selective reduction of the azoxy group to the hydrazo group.

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