3 - chloro - 4 (dichloromethyl) - 5 - hydroxy - 2 [5H] - furanone (MX) formed during chlorination of water containing natural organic substances, is a very potent bacterial mutgen. Molecular mechanics calculations to evaluate the conformation of structure, and to determine structure relationship properties are put forward. The investigations allow the correlation of molecular structures of MX with its properties, such as mass,partial charges, steric energy, frontier molecular orbital. The VRML molecular models have been investigated using Virtual Reality software. The spectral simulation of MX is illustrated. The principal aim is to develop an efficient method which control of MX.
