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42758-13-4

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42758-13-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42758-13-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,5 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42758-13:
(7*4)+(6*2)+(5*7)+(4*5)+(3*8)+(2*1)+(1*3)=124
124 % 10 = 4
So 42758-13-4 is a valid CAS Registry Number.

42758-13-4Upstream product

42758-13-4Relevant articles and documents

Regio- and Stereo-selectivity in the Hydrogenation of Aryl Phosphines by Niobium Aryloxide Compounds

Potyen, Mark C.,Rothwell, Ian P.

, p. 849 - 852 (2007/10/02)

The sequential hydrogenation of the three aryl rings in PPh3 by the catalyst system /3BunLi occurs with relative rates of 39:28:1; NMR analysis of the PhPCy2 obtained from and shows a predominantly all cis hydrogenation of both aryl rings has occurred.

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