Cas 438016-39-8,1-(6-chloro-2-oxo-4-phenyl-1,2λ5-benzoxaphosphinin-2-yl)pyrrolidine-2,5-dione

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Check Digit Verification of cas no

The CAS Registry Mumber 438016-39-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,0,1 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 438016-39:
(8*4)+(7*3)+(6*8)+(5*0)+(4*1)+(3*6)+(2*3)+(1*9)=138
138 % 10 = 8
So 438016-39-8 is a valid CAS Registry Number.

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438016-39-8Relevant academic research and scientific papers

Reactions of phenylenedioxytrihalophosphoranes with arylacetylenes: XIII. Reaction of 5-tert-butyl-2,2,2-trihalo-1,3,2λ5- benzodioxaphospholes with acetylenes

Mironov,Nemtarev,Varaksina,Shtyrlina,Gubaidullin,Litvinov,Dobrynin

, p. 864 - 887 (2014/08/18)

Reactions of 5-tert-butyl-2,2,2-trichloro-, 2,2,2-tribromo-5-tert-butyl-, and 2,2-dibromo-5-tert-butyl-2-fluoro-1,3,2λ5- benzodioxaphospholes with aryl- and alkylacetylenes lead to quantitative formation of 2-halo-1,2λ5-benzoxaphosph

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