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1167993-22-7

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1167993-22-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1167993-22-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,7,9,9 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1167993-22:
(9*1)+(8*1)+(7*6)+(6*7)+(5*9)+(4*9)+(3*3)+(2*2)+(1*2)=197
197 % 10 = 7
So 1167993-22-7 is a valid CAS Registry Number.

1167993-22-7Upstream product

1167993-22-7Downstream Products

1167993-22-7Relevant academic research and scientific papers

A desymmetrization approach toward highly oxygenated cis-decalins

Gromov, Alexey,Enev, Valentin,Mulzer, Johann

supporting information; experimental part, p. 2884 - 2886 (2009/12/24)

The cis-decalin core 2 of the antibiotic branimycin has been prepared by desymmetrization of diepoxynaphthalene 4. The key steps involve two successive SN' opening of the oxa-bridges. An improved procedure for the synthesis of 4 Is also described.

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