Cas 84715-55-9,1,2,3,4-Tetra-tert-butyl-1,2,3,4-tetraphospholan-5-one

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Check Digit Verification of cas no

The CAS Registry Mumber 84715-55-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,7,1 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 84715-55:
(7*8)+(6*4)+(5*7)+(4*1)+(3*5)+(2*5)+(1*5)=149
149 % 10 = 9
So 84715-55-9 is a valid CAS Registry Number.

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84715-55-9Relevant academic research and scientific papers

(tBuP)4CO, the First Cyclic Phospha-Urea Derivative - Synthesis and Reaction-Pathways in the System tert-Butylbis(trimethylsilyl)phosphane/Phosgene

Appel, Rolf,Paulen, Wilfried

, p. 109 - 113 (2007/10/02)

The reaction of tert-butylbis(trimethylsilyl)phosphane with phosgene leads to elimination of trimethylchlorosilane and CO via several detectable intermediates with phospha-alkene structure and formation of the first cyclic phospha-urea derivative, 1,2,3,4-tetra-tert-butyl-1,2,3,4-tetraphospholan-5-one (7).

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