Definition of chromophore - an atom or group whose presence is responsible for the colour of a compound. Definition of chromophore - an atom or group whose presence is responsible for the colour of a compound.
El Sereno, Los Angeles. El Sereno is a Los Angeles City neighborhood in the Eastside Los Angeles region of the County of Los Angeles, California. El Sereno as mapped by the Los Angeles Times. Cal State Los Angeles is in the lower right corner.
Del Rio is the principal city of the Del Rio Micropolitan Statistical Area, which includes all of Val Verde County; the micropolitan area had an estimated population of over 50,000 in 2007. Located across from Del Rio, in the Mexican state of Coahuila, is the city of Ciudad Acuna acuÃ±a with a city population 144,669. 144669