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219696-54-5

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219696-54-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219696-54-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,6,9 and 6 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 219696-54:
(8*2)+(7*1)+(6*9)+(5*6)+(4*9)+(3*6)+(2*5)+(1*4)=175
175 % 10 = 5
So 219696-54-5 is a valid CAS Registry Number.

219696-54-5Downstream Products

219696-54-5Relevant articles and documents

Polymer-bound triphenylphosphine as traceless reagent for Mitsunobu reactions in combinatorial chemistry: Synthesis of aryl ethers from phenols nad alcohols

Tunoori, Ashok Rao,Dutta, Dinah,Georg, Gunda I.

, p. 8751 - 8754 (2007/10/03)

The synthesis of aryl ethers from phenols and alcohols using polymer- bound triphenylphosphine and diethyl azodicarboxylate (DEAD) is described. The polymer-bound triphenylphosphines are easily removed by filtration from the reaction products. This method

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