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90234-69-8

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90234-69-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90234-69-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,2,3 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 90234-69:
(7*9)+(6*0)+(5*2)+(4*3)+(3*4)+(2*6)+(1*9)=118
118 % 10 = 8
So 90234-69-8 is a valid CAS Registry Number.

90234-69-8Relevant articles and documents

Synthesis of New Carboximidoyl Chlorides and Their Reaction with Nucleophiles

Ried, Walter,Kuembel, Brigitte,Tauer, Marie-Luise

, p. 564 - 575 (2007/10/02)

One-step reactions of N,N-dialkylcyanamides 1a-c and dicarbonitriles 1d, e with organic acyl chlorides and with 2-chloro-1,1-dicyanoethylenes easily lead to the N-acyl-substituted carboximidoyl chlorides 2a-k and biscarboximidoyl chlorides 2l-v, respectively.The substituents in the α-position of the chlorocarbonyl group have a strong influence on the stability of the reaction products.The carboximidoyl chlorides 2a, f, o, and u react with O-nucleophiles (H2O, alcohols, phenols), S-nucleophiles (dithiocarbamates, thiophenols), and N-nucleophiles (NH3, aliphatic and aromatic amines) to give a variety of products.

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