505067-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 505067-04-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,5,0,6 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 505067-04:
(8*5)+(7*0)+(6*5)+(5*0)+(4*6)+(3*7)+(2*0)+(1*4)=119
119 % 10 = 9
So 505067-04-9 is a valid CAS Registry Number.
505067-04-9Relevant academic research and scientific papers
Enantioselective syntheses of ring-C precursors of vit. B12. Reagent control
Jacobi, Peter A.,Li, Yongkai
, p. 701 - 704 (2007/10/03)
(Figure presented) Enelactones of the general structure S-(-)-I were prepared in three steps from alcohol 21 and acids 22 (ee ≈ 85%). Lactones S-(-)-I are versatile precursors to enelactams II of the type found in Vitamin B12.
