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916432-92-3

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916432-92-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 916432-92-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,6,4,3 and 2 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 916432-92:
(8*9)+(7*1)+(6*6)+(5*4)+(4*3)+(3*2)+(2*9)+(1*2)=173
173 % 10 = 3
So 916432-92-3 is a valid CAS Registry Number.

916432-92-3Relevant articles and documents

Synthesis and cytotoxicity of 9-substituted benzo[de]chromene-7,8-dione and 5-benzyl-9-substituted benzo[de]chromene-7,8-dione

Huang, Shi-Liang,Luo, Yi,Huang, Zhi-Shu,Wang, Xing-Yuan,Bu, Xian-Zhang,Liu, Pei-Qing,Ma, Lin,Xie, Bing-Fen,Liu, Zong-Chao,Li, Yue-Ming,Chan, Albert S. C.,Gu, Lian-Quan

, p. 2667 - 2684 (2007/10/03)

New Mansonone analogues of 9-substitued benzo[de]chromene-7,8-dione 5b-e and 5-benzyl-9-substitued benzo[de]chromene-7,8-dione 6a-e were prepared through a modified route. The first step involved a bulky base t-butylamine mediated regioselective deacetylation of 2-substituted-1,4-naphth-diyl diacetate, resulting in obtaining of monoacetate 4-acetate 2 in high yield. The mechanism of cyclization, debenzylation, and oxidation for the formation of 5a-e and 6a-e were discussed. The cytotoxicity of the prepared compounds 5 and 6 were comparable with naturally occurring Mansonone F. Copyright Taylor & Francis Group, LLC.

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