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678992-55-7

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678992-55-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 678992-55-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,8,9,9 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 678992-55:
(8*6)+(7*7)+(6*8)+(5*9)+(4*9)+(3*2)+(2*5)+(1*5)=247
247 % 10 = 7
So 678992-55-7 is a valid CAS Registry Number.

678992-55-7Relevant articles and documents

A novel synthesis of spiro[(2,2-dimethyl-[1,3]-dioxane)-5,2′- (2′,3′-dihydroindole)] using SRN1 reaction conditions

Sánchez,Sobrino,Pujol

, p. 1737 - 1740 (2004)

A concise synthesis of the spiro[(2,2-dimethyl-[1,3]-dioxane)-5,2′- (2′,3′-dihydroindole)] nucleus from substituted benzyl chlorides and 5-(hydroxymethyl)-2,2-dimethyl-5-nitro-1,3-dioxane 5 as starting materials is reported. The nitro intermediates 6 and 7 were prepared under S RN1 reaction conditions.

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