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121426-39-9

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121426-39-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121426-39-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,4,2 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 121426-39:
(8*1)+(7*2)+(6*1)+(5*4)+(4*2)+(3*6)+(2*3)+(1*9)=89
89 % 10 = 9
So 121426-39-9 is a valid CAS Registry Number.

121426-39-9Relevant articles and documents

Synthesis of N -[(3 S)-2,6-dioxo-1-(2-phenylethyl)-3-piperidinyl]-(2 S)-2-methylbutanamide (( - )-julocrotine)

Silva, Luciano L.,Joussef, Antonio C.

, p. 1531 - 1534 (2011/08/21)

The total synthesis of ( - )-julocrotine (1) starting from l-glutamic acid in 41% overall yield is described. The methodology utilizes protection, deprotection, and regioselection (carbonyl differentiation via oxazolidinone) protocols, and glutarimide ring formation is the key step.

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