81156-52-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81156-52-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,5 and 6 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81156-52:
(7*8)+(6*1)+(5*1)+(4*5)+(3*6)+(2*5)+(1*2)=117
117 % 10 = 7
So 81156-52-7 is a valid CAS Registry Number.
81156-52-7Relevant articles and documents
Reactions of Alkali-metal Azides with some Organophosphorus(V) Compounds
Dillon, Keith B.,Platt, Andrew W. G.,Waddington, Thomas C.
, p. 2292 - 2295 (1981)
The reactions of Li or Na with some organophosphorus(V) compounds containing chloro-groups, including PCl5(py) (py = pyridine) and catechyl derivates of PCl5, have been investigated by I31IP n.m.r. spectroscopy.Several new azido-species have been
