754990-58-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 754990-58-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,4,9,9 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 754990-58:
(8*7)+(7*5)+(6*4)+(5*9)+(4*9)+(3*0)+(2*5)+(1*8)=214
214 % 10 = 4
So 754990-58-4 is a valid CAS Registry Number.
754990-58-4Relevant academic research and scientific papers
Cyclization of 1-hydroxy-2-(oxoalkynyl)anthraquinones
Mzhelskaya,Ivanchikova,Polyakov,Moroz,Shvartsberg
, p. 2798 - 2804 (2007/10/03)
Procedures were developed for the heterocyclization of 2-benzoylethynyl-1- hydroxy-and 1-hydroxy-2-(1-oxo-3-phenylpropynyl)anthraquinone. The regioselective preparation of 2-substituted anthra[1,2-b]pyran-4,7,12-triones was demonstrated to be possible und
