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919087-35-7

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919087-35-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 919087-35-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,9,0,8 and 7 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 919087-35:
(8*9)+(7*1)+(6*9)+(5*0)+(4*8)+(3*7)+(2*3)+(1*5)=197
197 % 10 = 7
So 919087-35-7 is a valid CAS Registry Number.

919087-35-7Relevant articles and documents

Highly efficient and selective synthesis of conjugated triynes and higher oligoynes of biological and materials chemical interest via palladium-catalyzed alkynyl-alkenyl coupling

Metay, Estelle,Hu, Qian,Negishi, Ei-Ichi

, p. 5773 - 5776 (2007/10/03)

(Diagram presented) Iteration of a Pd-catalyzed reaction of alkynyl- and oligoynylzincs with (E)-ICH=CHCl followed by metalation-termination with electrophiles(E) has provided a linear route to conjugated tri- and tetraynes, and Pd-catalyzed monoalkynylation of 1,1-dibromoenynes accompanied by dehydrobromination has provided a convergent route to conjugated tri-, tetra-, and pentaynes. Both display unprecedented high efficiency and selectivity.

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