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725213-55-8

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725213-55-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 725213-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,5,2,1 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 725213-55:
(8*7)+(7*2)+(6*5)+(5*2)+(4*1)+(3*3)+(2*5)+(1*5)=138
138 % 10 = 8
So 725213-55-8 is a valid CAS Registry Number.

725213-55-8Downstream Products

725213-55-8Relevant articles and documents

Synthesis of polycyclic aromatics and heteroaromatics via electrophilic cyclization

Yao, Tuanli,Campo, Marino A.,Larock, Richard C.

, p. 3511 - 3517 (2007/10/03)

(Chemical Equation Presented) A variety of substituted polycyclic aromatics are readily prepared in good to excellent yields under very mild reaction conditions by the reaction of 2-(1-alkynyl)biphenyls with ICl, I2, NBS, and p-O2NC

Synthesis of fused polycycles by 1,4-palladium migration chemistry

Huang, Qinhua,Campo, Marino A.,Yao, Tuanli,Tian, Qingping,Larock, Richard C.

, p. 8251 - 8257 (2007/10/03)

Novel palladium migration/arylation methodology for the synthesis of complex fused polycycles has been developed, in which one or more sequential Pd-catalyzed intramolecular migration processes involving C-H activation are employed. The chemistry works best with electron-rich aromatics, which is in agreement with the idea that these palladium-catalyzed C-H activation reactions parallel electrophilic aromatic substitution.

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