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222976-50-3

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222976-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 222976-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,9,7 and 6 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 222976-50:
(8*2)+(7*2)+(6*2)+(5*9)+(4*7)+(3*6)+(2*5)+(1*0)=143
143 % 10 = 3
So 222976-50-3 is a valid CAS Registry Number.

222976-50-3Relevant articles and documents

Synthesis and reduction of endothiodipeptides containing malonic acid derivatives

Krumme, Dirk,Tschesche, Harald

, p. 3007 - 3018 (2007/10/03)

Amides of malonic acid derivatives and protected dipeptides containing amine malonic acid have been synthesized and converted into the corresponding monothio analoga and endothiedipeptides. By reduction of the thioamides terminal protected β-carboxy amine derivatives were obtained. Reduction of endothiodipeptides containing amine malonic acid as the carboxy component resulted in protected Ψ[CH2NH] pseudodipeptides for the use as dipeptide substitutes with proteolytic resistance.

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