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680211-90-9

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680211-90-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 680211-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,0,2,1 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 680211-90:
(8*6)+(7*8)+(6*0)+(5*2)+(4*1)+(3*1)+(2*9)+(1*0)=139
139 % 10 = 9
So 680211-90-9 is a valid CAS Registry Number.

680211-90-9Downstream Products

680211-90-9Relevant articles and documents

An efficient method for the preparation of mono α-aryl derivatives of diethyl malonate and ethyl cyanoacetate using ethyl-1-imidazole carbamate (EImC)

Behera, Manoranjan,Venkat Ragavan,Sambaiah,Erugu, Balaiah,Rama Krishna Reddy,Mukkanti,Yennam, Satyanarayana

experimental part, p. 1060 - 1062 (2012/03/26)

An efficient method for the synthesis of mono α-aryl derivatives of diethyl malonate and ethyl cyanoacetate using ethyl-1-imidazole carbamate (EImC) has been described. Using this method many sterically hindered and highly substituted mono α-aryl derivatives of diethyl malonate and ethyl cyanoacetate were synthesized in high yield.

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