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82867-59-2

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82867-59-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82867-59-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,8,6 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 82867-59:
(7*8)+(6*2)+(5*8)+(4*6)+(3*7)+(2*5)+(1*9)=172
172 % 10 = 2
So 82867-59-2 is a valid CAS Registry Number.

82867-59-2Downstream Products

82867-59-2Relevant articles and documents

Exploring an Umpolung strategy for quaternization of phosphorus

Vetter, Anna C.,Nikitin, Kirill,Gilheany, Declan G.

, p. 339 - 342 (2019/03/07)

We propose a new, potentially widely-applicable, Umpolung approach for the synthesis of quaternary phosphonium salts R3PR1 X (X = Cl, Br) from phosphine oxides R3PO. The new organic group R1 is introduced via nucleophilic attack on an intermediate halophosphonium salt using a Grignard reagent R1MgX and replaces the traditional phosphine quaternization approach. Consequently, the new method does not suffer from the limited availability of many parent phosphines and is much faster than standard quaternization.

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