196309-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 196309-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,6,3,0 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 196309-40:
(8*1)+(7*9)+(6*6)+(5*3)+(4*0)+(3*9)+(2*4)+(1*0)=157
157 % 10 = 7
So 196309-40-7 is a valid CAS Registry Number.
196309-40-7Relevant academic research and scientific papers
Convergent Synthesis of a Trans-fused 6-7-6 Tricyclic Ether System Based on a Ring-closing Metathesis Reaction
Oishi, Tohru,Nagumo, Yoko,Hirama, Masahiro
, p. 980 - 982 (2007/10/03)
Synthesis of a trans-fused 6-7-6 tricyclic ether system was achieved via stereoselective acetal formation, reductive cleavage of the acetal, and a ring-closing metathesis reaction.
