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681467-88-9

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681467-88-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 681467-88-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,1,4,6 and 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 681467-88:
(8*6)+(7*8)+(6*1)+(5*4)+(4*6)+(3*7)+(2*8)+(1*8)=199
199 % 10 = 9
So 681467-88-9 is a valid CAS Registry Number.

681467-88-9Relevant articles and documents

A novel synthesis of bromomethoxy disubstituted derivatives of benzocyclobutenone

Barve,Schiess

, p. 1729 - 1736 (2007/10/03)

Flash vacuum pyrolysis of ortho-methyl aromatic acid chlorides has been used to prepare a variety of substituted derivatives of the benzocyclobutenone ring system starting from simple precursors. The significance of the present reaction lies in the fact that the bromine atom present in the aromatic nucleus, remains undisturbed during the high temperature treatment employed in the pyrolysis and forms, a bromomethoxyketone successfully. This is an altogether new approach.

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