78050-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78050-52-9 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 2 respectively.
Calculate Digit Verification of CAS Registry Number 78050-52:
(7*7)+(6*8)+(5*0)+(4*5)+(3*0)+(2*5)+(1*2)=129
129 % 10 = 9
So 78050-52-9 is a valid CAS Registry Number.
InChI:InChI=1/C16H13BrO4/c1-21-11-5-2-10(3-6-11)4-7-14(18)12-8-13(17)16(20)9-15(12)19/h2-9,19-20H,1H3/b7-4+
78050-52-9Relevant 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
