Cas 656835-53-9,[CpFe((P(o-tolyl)2)C5H3S(t-C4H9))CuCl]2

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Check Digit Verification of cas no

The CAS Registry Mumber 656835-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,6,8,3 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 656835-53:
(8*6)+(7*5)+(6*6)+(5*8)+(4*3)+(3*5)+(2*5)+(1*3)=199
199 % 10 = 9
So 656835-53-9 is a valid CAS Registry Number.

656835-53-9Upstream product

540536-15-0 (R(P))-1-(tert-butylsulfenyl)-2-[bis-(o-tolyl)phosphino]ferrocene

656835-53-9Downstream Products

656835-53-9Relevant academic research and scientific papers

Chiral Copper Complexes of Phosphino Sulfenyl Ferrocenes as Efficient Catalysts for Enantioselective Formal Aza Diels-Alder Reactions of N-Sulfonyl Imines

Mancheno, Olga Garcia,Arrayas, Ramon Gomez,Carretero, Juan C.

, p. 456 - 457 (2004)

In the presence of a catalytic amount of silver perchlorate, copper(I) bromide complexes of planar chiral 1-phosphino-2-sulfenylferrocenes behave as very efficient chiral Lewis acids catalysts in the formal Aza Diels-Alder reaction of N-arylsulfonyl aldim

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