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1181811-73-3

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1181811-73-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1181811-73-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,1,8,1 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1181811-73:
(9*1)+(8*1)+(7*8)+(6*1)+(5*8)+(4*1)+(3*1)+(2*7)+(1*3)=143
143 % 10 = 3
So 1181811-73-3 is a valid CAS Registry Number.

1181811-73-3Relevant articles and documents

Rhodium catalyzed enantioselective cyclization of substituted imidazoles via C-H bond activation

Tsai, Andy S.,Wilson, Rebecca M.,Harada, Hitoshi,Bergman, Robert G.,Ellman, Jonathan A.

supporting information; experimental part, p. 3910 - 3912 (2009/12/25)

The enantioselective intramolecular alkylation of substituted imidazoles with enantiomeric excesses up to 98% has been accomplished by rhodium catalyzed C-H bond functionalization with (S,S′,R,R′)TangPhos as the chiral ligand.

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