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1027016-57-4

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1027016-57-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1027016-57-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,7,0,1 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1027016-57:
(9*1)+(8*0)+(7*2)+(6*7)+(5*0)+(4*1)+(3*6)+(2*5)+(1*7)=104
104 % 10 = 4
So 1027016-57-4 is a valid CAS Registry Number.

1027016-57-4Downstream Products

1027016-57-4Relevant 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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