129504-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129504-98-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,5,0 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 129504-98:
(8*1)+(7*2)+(6*9)+(5*5)+(4*0)+(3*4)+(2*9)+(1*8)=139
139 % 10 = 9
So 129504-98-9 is a valid CAS Registry Number.
129504-98-9Relevant academic research and scientific papers
A stereoselective Michael addition of α-lithiated phosphonates to α,β-unsaturated esters
Yamaguchi, Masahiko,Tsukamoto, Yukiharu,Hayashi, Akio,Minami, Toru
, p. 2423 - 2424 (2007/10/02)
α-Lithiated phosphonates added to α,β-unsaturated t-butyl esters in 1,4-manner giving anti-3,4-disubstituted-4-phosphorylbutanoates in high yields.
