104995-55-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104995-55-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,9 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 104995-55:
(8*1)+(7*0)+(6*4)+(5*9)+(4*9)+(3*5)+(2*5)+(1*5)=143
143 % 10 = 3
So 104995-55-3 is a valid CAS Registry Number.
104995-55-3Relevant academic research and scientific papers
A Synthetic Approach to the Macrolide Nucleus of Tetronolide
Takeda, Kei,Urahata, Makoto,Yoshii, Eiichi,Takayanagi, Hiroaki,Ogura, Haruo
, p. 4735 - 4737 (2007/10/02)
Synthesis of compound 4, the 14-membered macrolide nucleus of tetronolide (1), has been achieved via a base-catalyzed intramolecular cyclization of α-sulfonyl ω-aldehyde 15a under controlled conditions.
