117409-77-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117409-77-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,4,0 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 117409-77:
(8*1)+(7*1)+(6*7)+(5*4)+(4*0)+(3*9)+(2*7)+(1*7)=125
125 % 10 = 5
So 117409-77-5 is a valid CAS Registry Number.
117409-77-5Relevant academic research and scientific papers
9-Oxabicyclononynes
Mayer, Winfried,Meier, Herbert
, p. 509 - 518 (2007/10/02)
Semiempirical quantum mechanics (MNDO) and force field calculations (MM 2) reveal that two diastereomeric conformations a and b of low energy exist for each of the three isomeric cis-9-oxabicyclononynes 1 - 3.Synthetically, the highly strained comp
