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252742-73-7

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252742-73-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 252742-73-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,2,7,4 and 2 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 252742-73:
(8*2)+(7*5)+(6*2)+(5*7)+(4*4)+(3*2)+(2*7)+(1*3)=137
137 % 10 = 7
So 252742-73-7 is a valid CAS Registry Number.

252742-73-7Downstream Products

252742-73-7Relevant articles and documents

A new synthesis of 1,2,4-triazolin-5-ones: Application to the convergent synthesis of an NK1 antagonist

Cowden,Wilson,Bishop,Cottrell,Davies,Dolling

, p. 8661 - 8664 (2000)

Chlorotriazolinone 4 has been synthesised in a single step via the novel condensation of semicarbazide hydrochloride with orthoester 8. Alkylation of secondary amine 3 with compound 4 proceeds in 99% yield to afford the target NK1 antagonist 1. (C) 2000 Published by Elsevier Science Ltd.

Chemical synthesis of morpholine derivatives

-

, (2008/06/13)

The present invention relates to a process for the preparation of mopholine derivatives of formula (I) which are useful as a therapeutic agents.

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