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109103-87-9

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109103-87-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109103-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,0 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 109103-87:
(8*1)+(7*0)+(6*9)+(5*1)+(4*0)+(3*3)+(2*8)+(1*7)=99
99 % 10 = 9
So 109103-87-9 is a valid CAS Registry Number.

109103-87-9Downstream Products

109103-87-9Relevant articles and documents

Usual and unusual reactions of cyclohexane-1,2-dione with aryl azides and amines: a structural corrigendum

Singh, Neeraj,Banert, Klaus

supporting information, p. 1897 - 1901 (2017/03/09)

The reported syntheses of alleged functionalised 1,2,3-triazines from cyclohexane-1,2-dione and aryl azides, in the presence of pyrrolidine and other amines, were repeated. The products do not contain the bicyclic triazine and bicyclic ketone moieties; instead, cyclohexane-fused 4,5-dihydro-1,2,3-triazoles and monocyclic β-ketoamides were obtained, respectively. These corrections are well supported by careful analyses of NMR spectra, IR spectra, elemental analysis and comparison with data which were previously published in the literature. Suitable mechanisms are discussed for the synthesis of the observed compounds.

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