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121137-17-5

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121137-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121137-17-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,1,3 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121137-17:
(8*1)+(7*2)+(6*1)+(5*1)+(4*3)+(3*7)+(2*1)+(1*7)=75
75 % 10 = 5
So 121137-17-5 is a valid CAS Registry Number.

121137-17-5Relevant articles and documents

Reaction of N-Benzoyl-2-bromoglycine Methyl Ester with Deprotonated Nitroalkanes: Synthesis of β-Nitro and α,β-Dehydro Amino Acid Derivatives

Burgess, Vicky A.,Easton, Christopher J.

, p. 1063 - 1070 (2007/10/02)

N-Benzoyl-2-bromoglycine methyl ester (1) reacted with the alkyl nitronates (2a-e) to give the corresponding β-nitro amino acid derivatives (4a-e).Elimination reactions of (4a-d) afforded the α,β-dehydro amino acid derivatives (5a-d).Treatment of the β-nitrovaline derivative (4b) with tributyltin hydride gave the valine derivative (8).Reduction of the β-nitroalanine derivative (4a) gave the β-aminoalanine derivative (9), characterized by hydrolysis to 2,3-diaminopropionic acid hydrochloride

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