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22207-70-1

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22207-70-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22207-70-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,2,0 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 22207-70:
(7*2)+(6*2)+(5*2)+(4*0)+(3*7)+(2*7)+(1*0)=71
71 % 10 = 1
So 22207-70-1 is a valid CAS Registry Number.

22207-70-1Upstream product

22207-70-1Downstream Products

22207-70-1Relevant articles and documents

Preparation of Substituted Phenanthridines from the Coupling of Aryldiazonium Salts with Nitriles: A Metal Free Approach

Ramanathan, Mani,Liu, Shiuh-Tzung

, p. 5329 - 5336 (2015)

A transition metal free approach for the synthesis of substituted phenanthridines from the coupling reaction of aryldiazonium tetrafluoroborates with nitriles has been developed. This operationally simple protocol proceeds through a substitution of aryldiazonium with nitriles followed by an intramolecular arylation to provide the corresponding phenanthridines in moderate to excellent yields. (Chemical Equation Presented).

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