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128702-12-5

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128702-12-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128702-12-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,0 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128702-12:
(8*1)+(7*2)+(6*8)+(5*7)+(4*0)+(3*2)+(2*1)+(1*2)=115
115 % 10 = 5
So 128702-12-5 is a valid CAS Registry Number.

128702-12-5Relevant articles and documents

Et2SBr.SbCl5Br: An effective reagent for direct bromonium-induced polyene cyclizations

Snyder, Scott A.,Treitler, Daniel S.

, p. 7899 - 7903 (2009)

It's all about reactivity: Although bromonium-induced cation-π cyclizations are commonly utilized by nature to fashion six-membered rings from a diverse set of polyene precursors, no general laboratory method exists that can achieve the same breadth of substrate scope. An easily synthesized and handled reagent is described (see scheme) that is capable of directly, broadly, and rapidly effecting such reactions in good yield with a variety of geraniol, farnesol, and nerol derivatives.

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