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77077-91-9

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77077-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77077-91-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,0,7 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 77077-91:
(7*7)+(6*7)+(5*0)+(4*7)+(3*7)+(2*9)+(1*1)=159
159 % 10 = 9
So 77077-91-9 is a valid CAS Registry Number.

77077-91-9Upstream product

77077-91-9Downstream Products

77077-91-9Relevant articles and documents

Base-Catalysed Nitrosation of 1-Indanones - A Novel Ring Expansion Reaction

Chatterjea, Jnanendra Nath,Bhakta, Chittaranjan,Sinha, Anil Kumar,Jha, Hem Chandra,Zilliken, Fritz

, p. 52 - 57 (2007/10/02)

The 1-indanones 1-4, substituted in the five-membered ring, react with butyl nitrite in the presence of sodium methoxide to give exclusively the 2-hydroxyisocarbostyrils 8-11.In the absence of substituents (5-7) the reaction is accompanied by the formation of 2-hydroxyimino derivatives (22-24) which are obtained as main products.

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