Molecular Cartography is based on combinatorial single-molecule fluorescent in situ hybridization (smFISH). We hybridize several tens of transcript-specific probes per target RNA for analysis of up to 100 different types of RNA per sample. Through a proprietary colorizing and de-colorizing chemistry during several imaging rounds, our technology accurately identifies individual transcripts by decoding the barcode that is specific to each transcript type. This innovative approach enables Molecular Cartography to offer unprecedented specificity and sensitivity, with one spot corresponding to one transcript. The result is the visualization and identification of millions of individual transcripts per sample.