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172747-56-7

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172747-56-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172747-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,7,4 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 172747-56:
(8*1)+(7*7)+(6*2)+(5*7)+(4*4)+(3*7)+(2*5)+(1*6)=157
157 % 10 = 7
So 172747-56-7 is a valid CAS Registry Number.

172747-56-7Downstream Products

172747-56-7Relevant articles and documents

Modular, Concise, and Efficient Synthesis of Highly Functionalized 5-Fluoropyridazines by a [2 + 1]/[3 + 2]-Cycloaddition Sequence

Tran, Ga?l,Gomez Pardo, Domingo,Tsuchiya, Tomoki,Hillebrand, Stefan,Vors, Jean-Pierre,Cossy, Janine

, p. 3414 - 3417 (2015)

An easy access to 5-fluoropyridazines by a [2 + 1]/[3 + 2]-cycloaddition sequence between terminal alkynes, a difluorocarbene, and a diazo compound is reported. This approach does not necessitate the isolation of any intermediates, and a wide range of novel 5-fluoropyridazines was synthesized from readily available starting materials. Additionally, these compounds were used as a platform to access novel and highly diversified pyridazines.

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