117626-68-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117626-68-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,2 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 117626-68:
(8*1)+(7*1)+(6*7)+(5*6)+(4*2)+(3*6)+(2*6)+(1*8)=133
133 % 10 = 3
So 117626-68-3 is a valid CAS Registry Number.
117626-68-3Relevant academic research and scientific papers
Synthesis of the Furanoheliangolide Ring Skeleton
McDougal, Patrick G.,Oh, Young-Im,VanDerveer, Don
, p. 91 - 97 (2007/10/02)
A synthesis of the 11-oxabicycloundecane ring system found in the furanoheliangolide and abestinane classes of natural products is described.The key reaction involves the ozonolysis of an oxa-bridged Δ9-octalin (28) to yield an oxa-bridg
