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265998-03-6

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265998-03-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 265998-03-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,5,9,9 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 265998-03:
(8*2)+(7*6)+(6*5)+(5*9)+(4*9)+(3*8)+(2*0)+(1*3)=196
196 % 10 = 6
So 265998-03-6 is a valid CAS Registry Number.

265998-03-6Relevant articles and documents

A versatile method for the preparation of 2,2-disubstituted morpholine analogues

Takemoto, Toshiyasu,Iio, Yukiko,Nishi, Takahide

, p. 1785 - 1788 (2007/10/03)

We describe a versatile synthetic method for the preparation of 2,2- disubstituted morpholine analogues. Iodo-etherification of 1,1-disubstituted olefin with N-Boc-aminoethanol using NIS proceeded smoothly in a regioselective manner and the following cyclization was accomplished in good yield. We successfully applied this method for the preparation of the key intermediate 2 of tachykinin receptor antagonist. (C) 2000 Elsevier Science Ltd.

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