137207-45-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137207-45-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,0 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 137207-45:
(8*1)+(7*3)+(6*7)+(5*2)+(4*0)+(3*7)+(2*4)+(1*5)=115
115 % 10 = 5
So 137207-45-5 is a valid CAS Registry Number.
137207-45-5Relevant academic research and scientific papers
Moiseenkov, A. M.,Dragan, V. A.,Veselovskii, V. V.,Shashkov, A. S.
, p. 1682 - 1691 (1991)
A complete synthesis is reported for the racemic forms of all four possible cis- and trans-B/C-Δ5(10),15-rosadienes using electrophilic cyclization of their regular A,B-seco precursors in the final step.
