Cas 131981-42-5,bis(3-(dimethylamino)phenyl)(phenyl)phosphine oxide

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Check Digit Verification of cas no

The CAS Registry Mumber 131981-42-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,8 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 131981-42:
(8*1)+(7*3)+(6*1)+(5*9)+(4*8)+(3*1)+(2*4)+(1*2)=125
125 % 10 = 5
So 131981-42-5 is a valid CAS Registry Number.

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131981-42-5Relevant academic research and scientific papers

Robust synthesis of NIR-emissive P-rhodamine fluorophores

Arndt, Hans-Dieter,Nasufovic, Veselin,Sauer, Maria,Vilotijevic, Ivan

supporting information, p. 1567 - 1571 (2020/03/06)

P-Rhodamines were accessed by implementing a robust three step sequence consisting of (i) addition of m-metallated anilines to dichlorophosphine oxides, (ii) selective dibromination, and (iii) cyclization of the diaryllithium reagents derived from the dib

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