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.
Boyle Heights. 1  is a neighborhood in the city of Los Angeles in the Eastside region of Los Angeles County. 2  The neighboring communities are Chinatown, Commerce, Downtown, East Los Angeles, El Sereno, Lincoln Heights and Vernon.