Cas 250252-33-6,2-methyl-5-trimethylsilanylethynyl-pyridine

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Check Digit Verification of cas no

The CAS Registry Mumber 250252-33-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,2,5 and 2 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 250252-33:
(8*2)+(7*5)+(6*0)+(5*2)+(4*5)+(3*2)+(2*3)+(1*3)=96
96 % 10 = 6
So 250252-33-6 is a valid CAS Registry Number.

250252-33-6Upstream product

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1945-85-3 2-methyl-5-pyridylacetylene

250252-33-6Relevant articles and documents

Fluoride ion mediated reactions of disubstituted acetylenes Me3SiCCMMe3 (M=C, Si, Ge, Sn) with terminal acetylenes

Lukevics, Edmunds,Rubina, Kira,Abele, Edgars,Fleisher, Mendel,Arsenyan, Pavel,Grinberga, Solveiga,Popelis, Juris

, p. 69 - 73 (2007/10/03)

The CsF-18-crown-6 mediated reactions of disubstituted acetylenes Me3SiCCMMe3 (M=C, Si, Ge, Sn) with phenylacetylene and 2-methyl-5-pyridylacetylene in benzene have been studied. The first step of the reaction is the deprotonation of

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CAS

250252-33-6