131044-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131044-27-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,4 and 4 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 131044-27:
(8*1)+(7*3)+(6*1)+(5*0)+(4*4)+(3*4)+(2*2)+(1*7)=74
74 % 10 = 4
So 131044-27-4 is a valid CAS Registry Number.
131044-27-4Relevant academic research and scientific papers
Synthesis of Furans by Ag(I)-Promoted Cyclization of Allenyl Ketones and Aldehydes
Marshall, James A.,Wang, Xiao-jun
, p. 960 - 969 (2007/10/02)
A series of conjugated allenones (11b, 12b, 13c; 18a, 18b; 19b, 20b, AB and 27d) were prepared by Wittig rearrangement of (propargyloxy)acetic acids or stannanes followed by oxidation of the resultant allenylcarbinols.These all
