171561-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171561-22-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,5,6 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 171561-22:
(8*1)+(7*7)+(6*1)+(5*5)+(4*6)+(3*1)+(2*2)+(1*2)=121
121 % 10 = 1
So 171561-22-1 is a valid CAS Registry Number.
171561-22-1Relevant articles and documents
Hydroxyalkylphosphines in Asymmetric Hydrogenations
Holz, Jens,Boerner, Armin,Kless, Achim,Borns, Susanne,Trinkhaus, Stephan,et al.
, p. 1973 - 1988 (2007/10/03)
The synthesis of chiral bisphosphines bearing a hydroxyl group in a rigid backbone is described.These compounds which are analogues of the prominent ligand DIOP formed definite rhodium complexes.IR spectra provided evidence that the hydroxyl groups do not
