80826-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80826-19-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,8,2 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 80826-19:
(7*8)+(6*0)+(5*8)+(4*2)+(3*6)+(2*1)+(1*9)=133
133 % 10 = 3
So 80826-19-3 is a valid CAS Registry Number.
80826-19-3Relevant articles and documents
1-Substitution Derivatives of 4-Aryl-2,3-dibromo-1-naphthol
Krepelka, Jiri,Roubik, Jiri,Holubek, Jiri
, p. 2116 - 2122 (2007/10/02)
Alkylation of 7-ethyl-4-(4-ethylphenyl)-2,3-dibromo-1-naphthol (I) with ethyl esters of ω-bromoalkanoic acids XX-XXIII in a non-aqueous medium gave the 1-substitution derivatives II, IV, VI and VIII which were hydrolysed to the acids III, V, VII and IX.Th