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W(C6H4CH3(C2H5)8C20N4H3)(O)(OCH3) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138259-29-7

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138259-29-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138259-29-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,2,5 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138259-29:
(8*1)+(7*3)+(6*8)+(5*2)+(4*5)+(3*9)+(2*2)+(1*9)=147
147 % 10 = 7
So 138259-29-7 is a valid CAS Registry Number.

138259-29-7Relevant academic research and scientific papers

Relative strength of 4d vs 5d δ-bonds: Rotational barriers of isostructural molybdenum and tungsten porphyrin dimers

Collman, James P.,Garner, J. Michael,Hembre, Robert T.,Ha, Yunkyoung

, p. 1292 - 1301 (2007/10/02)

Rotational barriers about the metal-metal quadruple bond axis in isostructural molybdenum (ΔGrot? = 10.8 ± 0.1 kcal/mol) and tungsten porphyrin dimers (ΔGrot? = 12.9 ± 0.1 kcal/mol) have been analyzed by variabl

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