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214533-11-6

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214533-11-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 214533-11-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,4,5,3 and 3 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 214533-11:
(8*2)+(7*1)+(6*4)+(5*5)+(4*3)+(3*3)+(2*1)+(1*1)=96
96 % 10 = 6
So 214533-11-6 is a valid CAS Registry Number.

214533-11-6Downstream Products

214533-11-6Relevant articles and documents

Synthetic studies on halichondrin B, an antitumor polyether macrolide isolated from a marine sponge. 9. Synthesis of the C16 - C36 unit via stereoselective construction of the D and E rings

Horita, Kiyoshi,Nagasawa, Masaaki,Sakurai, Youji,Yonemitsu, Osamu

, p. 1199 - 1216 (2007/10/03)

The C16 - C36 unit of halichondrin B was stereoselectively synthesized via the aldol condensation of two C16 - C26 esters with the previously synthesized C27 - C36 aldehyde followed by E ring construction. The C16 - C26 esters were prepared starting from (2S)-3-hydroxy-2-methylpropionic acid and L-tartaric acid via construction of the D ring by iodoetherification.

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