131376-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131376-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,3,7 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131376-81:
(8*1)+(7*3)+(6*1)+(5*3)+(4*7)+(3*6)+(2*8)+(1*1)=113
113 % 10 = 3
So 131376-81-3 is a valid CAS Registry Number.
131376-81-3Relevant academic research and scientific papers
An Improved Procedure for Mono C-Alkylation of Pentane-2,4-dione with ω-Bromoacid Esters
Shrout, David P.,Lightner, David A.
, p. 2075 - 2080 (2007/10/02)
Pentane-2,4-dione is alkylated by ethyl bromoacetate or ethyl 6-bromohexanoate in high yield in CH2Cl2 or 5:1 CH3CN-(CH3)2SO solvents, using one equivalent of K2CO3-Cs2CO3 as base.
