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40521-63-9

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40521-63-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40521-63-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,5,2 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 40521-63:
(7*4)+(6*0)+(5*5)+(4*2)+(3*1)+(2*6)+(1*3)=79
79 % 10 = 9
So 40521-63-9 is a valid CAS Registry Number.

40521-63-9Downstream Products

40521-63-9Relevant articles and documents

Copper-catalyzed cross-coupling reaction of organoboron compounds with primary alkyl halides and pseudohalides

Yang, Chu-Ting,Zhang, Zhen-Qi,Liu, Yu-Chen,Liu, Lei

, p. 3904 - 3907 (2011/05/15)

Non-activated alkyl electrophiles, including alkyl iodides, bromides, tosylates, mesylates, and even chlorides, underwent copper-catalyzed cross-coupling with aryl boron compounds and alkyl 9-BBN reagents (see scheme; 9-BBN=9-borabicyclo[3.3.1]nonane). The reactions proceed with practically useful reactivities and thus complement palladium- and nickel-catalyzed Suzuki-Miyaura coupling reactions of alkyl halides.

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