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5,11,17,23-tetra-tert-butyl-25,27-dipropoxy-26,28-bis(diphenoxyphosphanyloxy)calix[4]arene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

851769-90-9

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851769-90-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 851769-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,1,7,6 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 851769-90:
(8*8)+(7*5)+(6*1)+(5*7)+(4*6)+(3*9)+(2*9)+(1*0)=209
209 % 10 = 9
So 851769-90-9 is a valid CAS Registry Number.

851769-90-9Relevant academic research and scientific papers

Bis-phosphites and bis-phosphinites based on distally-functionalised calix[4]arenes: Coordination chemistry and use in rhodium-catalysed, low-pressure olefin hydroformylation

Steyer, Stephane,Jeunesse, Catherine,Harrowfield, Jack,Matt, Dominique

, p. 1301 - 1309 (2007/10/03)

Six calix[4]arenes each bearing two non-cyclic PR2 units attached at distal phenolic oxygen atoms, p-Bu t-calix[4]arene-25,27-(OPR2)2-26,28-(OR') 2 (R = OPh; R' = Prn, L1; R = OP

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