Cas 500599-23-5,2-Propyn-1-ol, 1-[bis(2-phenylethyl)phosphinyl]-3-(triethylgermyl)-

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Check Digit Verification of cas no

The CAS Registry Mumber 500599-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,5,9 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 500599-23:
(8*5)+(7*0)+(6*0)+(5*5)+(4*9)+(3*9)+(2*2)+(1*3)=135
135 % 10 = 5
So 500599-23-5 is a valid CAS Registry Number.

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500599-23-5Relevant articles and documents

Regioselective addition of secondary phosphine oxides to 3-(trialkylsilyl)- and 3-(trialkylgermyl)-2-propynals

Gusarova, Nina K,Reutskaya, Aelita M,Ivanova, Nina I,Medvedeva, Alevtina S,Demina, Maria M,Novopashin, Peter S,Afonin, Andrei V,Albanov, Alexander I,Trofimov, Boris A

, p. 172 - 175 (2002)

3-(Trialkylsilyl)- and 3-(trialkylgermyl)-2-propynals as well as 2-propynal react with secondary phosphine oxides by carbonyl group under mild conditions ( - 10 to 22 C) to give corresponding tertiary phosphine oxides with acetylenic and hydroxyl moieties

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500599-23-5