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84713-51-9

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84713-51-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84713-51-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,7,1 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84713-51:
(7*8)+(6*4)+(5*7)+(4*1)+(3*3)+(2*5)+(1*1)=139
139 % 10 = 9
So 84713-51-9 is a valid CAS Registry Number.

84713-51-9Relevant articles and documents

Aminolysis of Activated Esters Formed by Reaction of Carboxylate Salts with Strained Phosphonates and Phosphinates

Acher, Francine,Wakselman, Michel

, p. 3675 - 3676 (1982)

Nucleophilic attack of a carboxylate salt on a five membered phosphonic or phosphinic ester followed by an intramolecular acyl transfer reaction gives a substituted aryl ester.Due to the intramolecular base catalysis of a neighbouring P=O group the bimolecular aminolysis of this ester is a fast process.

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