75416-82-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75416-82-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,1 and 6 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 75416-82:
(7*7)+(6*5)+(5*4)+(4*1)+(3*6)+(2*8)+(1*2)=139
139 % 10 = 9
So 75416-82-9 is a valid CAS Registry Number.
75416-82-9Relevant academic research and scientific papers
NOVEL SYNTHESIS OF 2,3-DIARYLBUTA-1,3-DIENES FROM 1,4-DIMETHOXYBUTYNE-2
Ishino, Yoshio,Nishiguchi, Ikuzo,Takihira, Fujio,Hirashima, Tsuneaki
, p. 1527 - 1528 (2007/10/02)
It was found that 2,3-diarylbuta-1,3-dienes were readily obtained in good to excellent yields through the SN-2' type substitution of 1,4-dimethoxybutyne-2 with aryl Grignard reagents in the presence of a copper(I) salt.
