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500561-81-9

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500561-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 500561-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,5,6 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 500561-81:
(8*5)+(7*0)+(6*0)+(5*5)+(4*6)+(3*1)+(2*8)+(1*1)=109
109 % 10 = 9
So 500561-81-9 is a valid CAS Registry Number.

500561-81-9Downstream Products

500561-81-9Relevant articles and documents

Preparation of dichloro(2,4,6-tribromophenoxy)(1,2-diphenoxy)phosphorane and its nonoxidative chlorination reactions with alkyl and aryl phosphonates

Byrd, Houston,Bharara, Prakash C.,Sullens, Tyler A.,Harden, Jeremiah D.,Gray, Gary M.

, p. 240 - 244 (2002)

The reaction of tetrachloro(2,4,6-tribromophenoxy)phosphorane, (TBPO)PCl4, with o-catechol yields dichloro(2,4,6-tribromophenoxy)(1,2-diphenoxy)phosphorane, (TBPO)(DP)PCl2. Quantitative 31P[1H] NMR spectroscopic

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