Guanosine monophosphate

Guanosine monophosphate (CAS 85-32-5), also known as 5'-guanylic acid and guanosine-5'-monophosphate, is a purine nucleotide used commercially as a flavor enhancer and acidulant in food manufacturing.

It delivers umami potentiation, amplifying savory taste profiles when used in combination with other nucleotides or glutamates. In processed food production, GMP is combined with inosine monophosphate and monosodium glutamate.

This combination intensifies umami in soups, seasonings, snack coatings, and instant noodles. Flavor houses incorporate it into proprietary savory blends where precise nucleotide ratios determine the final taste profile of a finished product.

In pharmaceutical and biotechnology applications, it serves as a biochemical reference material and a building block in nucleotide synthesis workflows. Research and diagnostic suppliers also source it for cell biology assays.

These applications often require enzymatic studies using defined nucleotide substrates. Guanosine monophosphate is supplied as a white to off-white crystalline powder, typically as the disodium salt form for food-grade applications.

Food-grade and reagent-grade specifications are the most commonly available, with food-grade material conforming to FCC or relevant regional food additive standards. Bulk quantities are standard for food ingredient procurement.

Smaller pack sizes are also available for pharmaceutical and laboratory use. This ensures that both industrial manufacturers and research facilities can access the material in the specific volumes required for their operations.