Cas 97021-21-1,Glycine, N-(N-benzoyl-DL-valyl)-, ethyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 97021-21-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,0,2 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 97021-21:
(7*9)+(6*7)+(5*0)+(4*2)+(3*1)+(2*2)+(1*1)=121
121 % 10 = 1
So 97021-21-1 is a valid CAS Registry Number.

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97021-21-1Relevant academic research and scientific papers

Ammonia in Ugi reactions - Four-component versus six-component couplings

Pick, Rigobert,Bauer, Michael,Kazmaier, Uli,Hebach, Christina

, p. 757 - 760 (2005)

If ammonia is used as amine component in Ugi reactions, the desired peptide sometimes is obtained only as the minor product or in traces. Side reactions such as six-component couplings are responsible for this observation. These side reactions can be suppressed or favoured depending on the reaction conditions used.

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