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142373-59-9

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142373-59-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142373-59-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,3,7 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 142373-59:
(8*1)+(7*4)+(6*2)+(5*3)+(4*7)+(3*3)+(2*5)+(1*9)=119
119 % 10 = 9
So 142373-59-9 is a valid CAS Registry Number.

142373-59-9Relevant articles and documents

Synthesis of cyclic prodrugs of Aggrastat and its analogue with a modified phenylpropionic acid linker

Song, Xiaoping,He, Henry T.,Siahaan, Teruna J.

, p. 549 - 552 (2007/10/03)

(formula presented) 1a, n=2; 1b, n=1 The objective of this work was to synthesize cyclic prodrugs 1a and 1b from Aggrastat 2a and its analogue 2b, respectively, to improve their membrane permeation. Cyclic prodrugs 1a and 1b were formed using an ester bond between the -COOH group of Aggrastat or its analogue and the phenylpropionic acid linker 3 and an amide bond between the piperidinylamine and the -COOH group of the linker 3, respectively, as outlined in Scheme 4.

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