123719-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123719-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,1 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 123719-45:
(8*1)+(7*2)+(6*3)+(5*7)+(4*1)+(3*9)+(2*4)+(1*5)=119
119 % 10 = 9
So 123719-45-9 is a valid CAS Registry Number.
123719-45-9Relevant academic research and scientific papers
Synthesis of the Carbazole Alkaloids Carbazomycin A and B and Hyellazole
Moody, Christopher J.,Shah, Pritom
, p. 376 - 377 (2007/10/02)
The first synthesis of carbazomycins A and B (1) is described; the route involves Diels-Alder reaction of 1-methylpyranoindol-3-one with ethyl 3-trimethylsilylpropynoate followed by functional group interconversions; the marine alkaloid hyellazole
