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156541-72-9

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156541-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156541-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,5,4 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 156541-72:
(8*1)+(7*5)+(6*6)+(5*5)+(4*4)+(3*1)+(2*7)+(1*2)=139
139 % 10 = 9
So 156541-72-9 is a valid CAS Registry Number.

156541-72-9Relevant academic research and scientific papers

Ru(bpy)(32+)-mediated addition of Se-phenyl p-tolueneselenosulfonate to electron rich olefins

Barton,Csiba,Jaszberenyi

, p. 2869 - 2872 (1994)

The addition of Se-phenyl p-tolueneselenosulfonate 1 to electron rich olefins 4a-4e upon visible light photolysis with a catalytic amount of tris(2,2'-bipyridine)ruthenium(II) gives adducts 5 in high yield.

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