117653-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117653-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,5 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 117653-57:
(8*1)+(7*1)+(6*7)+(5*6)+(4*5)+(3*3)+(2*5)+(1*7)=133
133 % 10 = 3
So 117653-57-3 is a valid CAS Registry Number.
117653-57-3Relevant academic research and scientific papers
A Concise Synthesis of d,l-Methylenomycin A and d,l-epi-Methylenomycin A
Tius, Marcus A.,Trehan, Sanjay
, p. 46 - 51 (2007/10/02)
A cationic cyclopentaannelation reaction that was developed in our laboratories has been applied to the synthesis of d,l-methylenomycin A, a fungal metabolite that has been isolated from a strain of Streptomyces violaceoruber.The efficiency of the key rea
