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65220-59-9

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65220-59-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 65220-59-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,2,2 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 65220-59:
(7*6)+(6*5)+(5*2)+(4*2)+(3*0)+(2*5)+(1*9)=109
109 % 10 = 9
So 65220-59-9 is a valid CAS Registry Number.

65220-59-9Downstream Products

65220-59-9Relevant articles and documents

Mechanistic investigations of the formation of TTF derivatives via the phosphonate way

Cristau,Darviche,Torreilles,Fabre

, p. 2103 - 2106 (1998)

We studied the influence of acetic acid concentration on the deamination and dephogphonylation of the adduct resulting of the nucleophilic reaction between adequate α-metalated phosphonate and imminium salt, to enhance the yield of such reactions in order to access efficiently a lot of unsymmetrical TTF derivatives. A mechanism is proposed for the formation of TTF, including steps, i1 to i7. The potential concurrent formation of phosphonate 1 and other by-products is also discussed.

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