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214596-89-1

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214596-89-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 214596-89-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,4,5,9 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 214596-89:
(8*2)+(7*1)+(6*4)+(5*5)+(4*9)+(3*6)+(2*8)+(1*9)=151
151 % 10 = 1
So 214596-89-1 is a valid CAS Registry Number.

214596-89-1Relevant articles and documents

Synthetic studies of 14-membered cyclopeptide alkaloids

East, Stephen P.,Joullie, Madeleine M.

, p. 7211 - 7214 (1998)

A strained 14-membered cyclopeptide was prepared from the Garner aldehyde derived from D-serine. The key steps in the synthesis were the construction of the alkyl-aryl ether linkage via an S(N)Ar reaction involving 4-fluorobenzonitrile and the macrolactamization using a modification of the Schmidt protocol involving an activated pentafluorophenyl ester.

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