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81705-94-4

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81705-94-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81705-94-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,0 and 5 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81705-94:
(7*8)+(6*1)+(5*7)+(4*0)+(3*5)+(2*9)+(1*4)=134
134 % 10 = 4
So 81705-94-4 is a valid CAS Registry Number.

81705-94-4Downstream Products

81705-94-4Relevant articles and documents

Synthesis of 1,2 diamines under environmentally benign conditions: application for the preparation of imidazolidiniums

Roche, Stéphane P.,Teyssot, Marie-Laure,Gautier, Arnaud

supporting information; scheme or table, p. 1265 - 1268 (2010/04/29)

An environmentally friendly and economically attractive access to unsymmetrical and symmetrical 1,2-diamines has been developed. Chemoselective N-monoalkylation in water and alcoholic solvents was demonstrated. This method represents a simple and scalable preparation (2-3 steps) of symmetrical and unsymmetrical imidazolidinium salts, precursors of N-Heterocyclic Carbenes.

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