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129972-88-9

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129972-88-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129972-88-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,7 and 2 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 129972-88:
(8*1)+(7*2)+(6*9)+(5*9)+(4*7)+(3*2)+(2*8)+(1*8)=179
179 % 10 = 9
So 129972-88-9 is a valid CAS Registry Number.

129972-88-9Relevant articles and documents

(Benzoyliodomethyl)triphenylphosphonium Iodide: A Convenient Reagent for Direct Synthesis of Arylethynyl Phenyl Ketones by Chain Extension of Aldehydes

Iman, Manoutcher,Bouyssou, Pascal,Chenault, Jacques

, p. 631 - 632 (1990)

Reaction between (benzoyliodomethyl)triphenylphosphonium iodide, potassium carbonate and various aromatic aldehydes in a liquid-solid two-phase system, gives arylethynyl phenyl ketones in good yield.

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