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1266333-81-6

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1266333-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1266333-81-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,6,3,3 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1266333-81:
(9*1)+(8*2)+(7*6)+(6*6)+(5*3)+(4*3)+(3*3)+(2*8)+(1*1)=156
156 % 10 = 6
So 1266333-81-6 is a valid CAS Registry Number.

1266333-81-6Relevant articles and documents

Synthesis of 2-keto-imidazoles utilizing N -arylamino-substituted N-heterocyclic carbenes

Zarganes-Tzitzikas, Tryfon,Neochoritis, Constantinos G.,Stephanidou-Stephanatou, Julia,Tsoleridis, Constantinos A.

supporting information; experimental part, p. 1468 - 1471 (2011/04/26)

A new method for the synthesis of 2-aroyl-, 2-heteroaroyl-, and 2-cinnamoyl-substituted imidazoles in very good yields has been developed. The reaction employs novel nitrogen heterocyclic carbenes (NHCs), namely, N-arylamino-substituted NHCs, formed in situ from the corresponding imidazolium salts, and subsequent reaction with aromatic, heteroaromatic, and cinnamic aldehydes without utilizing transition metals or expensive specialized catalysts.(Figure Presented)

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