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887969-80-4

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887969-80-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 887969-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,7,9,6 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 887969-80:
(8*8)+(7*8)+(6*7)+(5*9)+(4*6)+(3*9)+(2*8)+(1*0)=274
274 % 10 = 4
So 887969-80-4 is a valid CAS Registry Number.

887969-80-4Relevant articles and documents

Chromatography-Free and Eco-Friendly Synthesis of Aryl Tosylates and Mesylates

Lei, Xiangyang,Jalla, Anusha,Abou Shama, Mhd A.,Stafford, Jamie M.,Cao, Billy

supporting information, p. 2578 - 2585 (2015/09/01)

Two chromatography-free and eco-friendly protocols have been developed to synthesize aryl tosylates and mesylates by the tosylation and mesylation of the corresponding hydroxyarenes, respectively. These protocols are superior to other known ones regarding

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