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121749-44-8

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121749-44-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121749-44-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,4 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 121749-44:
(8*1)+(7*2)+(6*1)+(5*7)+(4*4)+(3*9)+(2*4)+(1*4)=118
118 % 10 = 8
So 121749-44-8 is a valid CAS Registry Number.

121749-44-8Upstream product

121749-44-8Downstream Products

121749-44-8Relevant articles and documents

1,4-Diamino- and 1,4-Dibutylamino-anthraquinones: Reduction and/or Deprotonation-initiated Elimination of the Butyl Groups in Dipolar Aprotic Media

Anne, Agnes

, p. 311 - 318 (2007/10/02)

The standard redox potentials of the one- and two-electron reductions of the title compounds have been determined.The deprotonated form of the dibutylamino compound underwent a base-initiated elimination of the butyl groups and the basicity of the radical anion resulting from one-electron reduction was sufficient to provoke the same type of cleavage through an initial father-son reaction.A multi-step mechanism is proposed for the elimination on the basis of the identification of intermediates.

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