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phenyltris(phenylethynyl)tin is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21890-31-3

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21890-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21890-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,9 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21890-31:
(7*2)+(6*1)+(5*8)+(4*9)+(3*0)+(2*3)+(1*1)=103
103 % 10 = 3
So 21890-31-3 is a valid CAS Registry Number.

21890-31-3Downstream Products

21890-31-3Relevant academic research and scientific papers

Transmetalation of tetraalkynyltin compounds with Grignard reagents: Access to mono- and dialkyltin products

Jaumier, Pascale,Jousseaume, Bernard,Lahcini, Mohammed

, p. 402 - 404 (2007/10/03)

Monoalkyltrialkynyl- and dialkyldialkynyltin compounds can be selectively synthesized by transmetalation of tetraalkynyltin compounds with Grignard reagents; an example is given in Equation (1). This reaction provides a route to mono- and dialkyltin compounds that avoids the use of strongly electrophilic reagents. The labile tin-alkynyl bonds allow the transmetalation products to be converted into alkyltin oxides, chlorides, and alkoxides.

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