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752210-78-9

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752210-78-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 752210-78-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,2,2,1 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 752210-78:
(8*7)+(7*5)+(6*2)+(5*2)+(4*1)+(3*0)+(2*7)+(1*8)=139
139 % 10 = 9
So 752210-78-9 is a valid CAS Registry Number.

752210-78-9Relevant articles and documents

1,4,5,8-Tetraazafulvalenes - Synthesis of sulfur-containing derivatives and classification of the chromophor

Kühn, Christiane,Beckert,Grummt,K?pplinger,Birckner

, p. 406 - 413 (2004)

In order to obtain sulfur-containing tetraazafulvalenes the derivatives 1-3 were cross-coupled with different types of acetylenes via palladium-catalyzed reactions. Starting from the tetrabromoaryl derivative 3a, four bromine atoms could be replaced by 2-

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