Cas 180692-03-9,C22H32O2P2

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Check Digit Verification of cas no

The CAS Registry Mumber 180692-03-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,6,9 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 180692-03:
(8*1)+(7*8)+(6*0)+(5*6)+(4*9)+(3*2)+(2*0)+(1*3)=139
139 % 10 = 9
So 180692-03-9 is a valid CAS Registry Number.

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180692-03-9Relevant academic research and scientific papers

Preparation of bi- and tridentate doubly P-chiral diphosphine dioxide ligands for asymmetric catalysis

Lam, William W.-L.,Haynes, Richard K.,Yeung, Lam-Lung,Chan, Eric W.-K

, p. 4733 - 4736 (2007/10/03)

Syntheses of bi-and tridentate doubly P-chiral diphosphine dioxides through reaction of the individual enantiomers of optically pure lithiated tert-butylphenylphosphine oxide with different bifunctional electrophiles are described.

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