78050-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78050-57-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,0,5 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 78050-57:
(7*7)+(6*8)+(5*0)+(4*5)+(3*0)+(2*5)+(1*7)=134
134 % 10 = 4
So 78050-57-4 is a valid CAS Registry Number.
InChI:InChI=1/C15H11BrO4/c16-11-7-10(14(19)8-15(11)20)13(18)6-5-9-3-1-2-4-12(9)17/h1-8,17,19-20H/b6-5+
78050-57-4Relevant academic research and scientific papers
ONE-STEP SYNTHESIS OF 4-ETHOXY-6-BROMO-7-HYDROXYFLAVYLIUM SALTS AND THE CORRESPONDING FLAVONES
Yakovenko, V. I.,Oganesyan, E. T.,Dorofeenko, G. N.
, p. 115 - 118 (2007/10/02)
The boundaries of application of the one-step synthesis of flavylium salts on the basis of bromoresacetophenone were extended, and the conditions for heterocyclization of 2', 4'-dihydroxy-5'-bromochalcones to 4-ethoxyflavylium salts were studied simultane
