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321659-05-6

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321659-05-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 321659-05-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,1,6,5 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 321659-05:
(8*3)+(7*2)+(6*1)+(5*6)+(4*5)+(3*9)+(2*0)+(1*5)=126
126 % 10 = 6
So 321659-05-6 is a valid CAS Registry Number.

321659-05-6Relevant articles and documents

New heteroditopic, linked macrocyclic systems derived from selectively protected N2S2-, N3O2- and N4-donor macrocycles

Chartres, Jy D.,Groth, Andrew M.,Lindoy, Leonard F.,Lowe, Mark P.,Meehan, George V.

, p. 3444 - 3450 (2007/10/03)

The use of selectively tert-butoxycarbonyl protected derivatives of 1,9-dithia-5,13-diazacyclohexadecane 1, 1,7-dithia-4,11-diazacyclotetradecane 2, 1,4,8,11-tetraazacyclotetradecane 3 and 2,5-dioxa-8,11,14-triaza-1,6(1,2)dibenzenacyclopentadecaphane 4 has enabled the efficient synthesis of new linked heteroditopic macrocyclic systems incorporating combinations of N2S2- and N4- or N3O2-donor sites. Incorporation of two types of binding sites in the respective products makes them suitable candidates for the synthesis of a range of mixed-metal, di- and oligo-nuclear metal complexes.

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