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138780-02-6

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138780-02-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138780-02-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,8 and 0 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138780-02:
(8*1)+(7*3)+(6*8)+(5*7)+(4*8)+(3*0)+(2*0)+(1*2)=146
146 % 10 = 6
So 138780-02-6 is a valid CAS Registry Number.

138780-02-6Downstream Products

138780-02-6Relevant articles and documents

Synthesis of Cyclopropyl Amino Acid Derivatives

Easton, Christopher J.,Tan, Eng Wui,Ward, Caroline M.

, p. 395 - 402 (2007/10/02)

Derivatives of α,β-methanovaline, α,β-methanophenylalanine and β-methyl-α,β-methanoalanine have been prepared by regioselective side-chain functionalization of suitably protected amino acid derivatives, followed by cyclization with either sodium hydride or 1,8-diazabicycloundec-7-ene.The approach used in this work illustrates a method for the synthesis of cyclopropyl amino acid derivatives which is complementary to existing procedures.

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