207805-85-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 207805-85-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,8,0 and 5 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 207805-85:
(8*2)+(7*0)+(6*7)+(5*8)+(4*0)+(3*5)+(2*8)+(1*5)=134
134 % 10 = 4
So 207805-85-4 is a valid CAS Registry Number.
207805-85-4Relevant academic research and scientific papers
Convergent synthesis of the trans-fused 6-n-6-6 (n = 7-10) tetracyclic ether system based on a ring-closing metathesis reaction
Oishi, Tohru,Nagumo, Yoko,Hirama, Masahiro
, p. 1041 - 1042 (2007/10/03)
A convergent synthesis of the trans-fused 6-n-6-6 (n = 7-10) tetracyclic ether system was achieved via stereoselective alkylation and ring-closing metathesis reaction.
