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627511-79-9

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627511-79-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 627511-79-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,7,5,1 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 627511-79:
(8*6)+(7*2)+(6*7)+(5*5)+(4*1)+(3*1)+(2*7)+(1*9)=159
159 % 10 = 9
So 627511-79-9 is a valid CAS Registry Number.

627511-79-9Relevant articles and documents

Formal total synthesis of altohyrtin C (spongistatin 2). Part 1: Aldol approach to unite AB and CD spiroacetals

Terauchi, Takeshi,Terauchi, Taro,Sato, Ippei,Shoji, Wataru,Tsukada, Tomoharu,Tsunoda, Takashi,Kanoh, Naoki,Nakata, Masaya

, p. 7741 - 7745 (2007/10/03)

The Mukaiyama aldol coupling of the second-generation C1-C14 (AB) fragment of altohyrtins (spongistatins) with the model α-methyl-β -alkoxyaldehydes revealed that the stereochemistry at the newly formed carbon centers was controlled by the β-alkoxy chiral center of the model aldehydes. The union of the AB fragment with the C15-C28 (CD) fragment under the same conditions gave the fully elaborated C1-C28 (ABCD) subunit in good yield.

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