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924900-99-2

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924900-99-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 924900-99-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,4,9,0 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 924900-99:
(8*9)+(7*2)+(6*4)+(5*9)+(4*0)+(3*0)+(2*9)+(1*9)=182
182 % 10 = 2
So 924900-99-2 is a valid CAS Registry Number.

924900-99-2Relevant academic research and scientific papers

Studies toward the total synthesis of irumamycin: stereoselective preparation of the C(15)-C(27) segment via two-directional chain synthesis

Hirose, Tomoyasu,Sunazuka, Toshiaki,Yamamoto, Daisuke,Mouri, Mutsumi,Hagiwara, Yoshiaki,Matsumaru, Takanori,Kaji, Eisuke,Omura, Satoshi

, p. 413 - 416 (2008/02/03)

The basic structure of the C(15)-C(27) part of irumamycin (1) was synthesized. Stereoselective assembly of C16, 17, 22, and an extra C21 stereocenter was achieved by two-directional Brown's asymmetric allyl boration. Group selective PMP acetal formation and oxidative cleavage of vinyl group facilitated the differentiation of the ends of a two-directionally synthesized chain.

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