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20502-36-7

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20502-36-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20502-36-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,5,0 and 2 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20502-36:
(7*2)+(6*0)+(5*5)+(4*0)+(3*2)+(2*3)+(1*6)=57
57 % 10 = 7
So 20502-36-7 is a valid CAS Registry Number.

20502-36-7Downstream Products

20502-36-7Relevant articles and documents

INTERACTION OF P(III) COMPOUNDS WITH SILYL HALIDES. THE MECHANISM OF THE REACTION OF PHOSPHOROUS TRIAMIDES WITH TRIALKYLSILYL HALIDES

Cypryk, Marek,Chojnowski, Julian,Michalski, Jan

, p. 2471 - 2478 (2007/10/02)

The reaction of phosphorous hexamethyltriamide with trimethylsilyl iodide or bromide provides a convenient synthesis of the corresponding N,N,N',N'-tetramethylphosphorodiamidous halide.Low temperature (31)P NMR studies gave evidence of the formation of a phosphonium salt-type complex with direct P-Si bonding in the first step of the reaction. Analogous phosphonium salt intermediates involving P-P bonds were found to be involved in some ligand exchange process between two tricoordinated phosphorus species.

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