Guanidine Carbonate


Diguanidine Carbonate, Guanidine carbonate salt

Technical Data

CAS Number: 593-85-1
Molecular Formula: NH2C(=NH)NH2 · ½H2CO3
Molecular Weight: 121.1
Beilstein Registry Number: 3628359
EC Number: 209-813-7

FabriChem Specifications

Purity99% Min.
Moisture0.2% Max.
Ash Content0.4% Max.
Solubility (20%)Transparent
pH (4%)11.4 ± 0.4

Molecular Structure



Guanidine Carbonate is an alkaline, organic salt. Guanidine Carbonate’s primary functions have been for use in formulations for hair straightening, as a depilatory agent, for use in pH adjustment, and as a buffering agent.

As a strong chemical base, guanidine carbonate is used as an intermediary in a variety of applications:

• Chemicals, in the production of guanidine nitrate; flame retardant in technical textiles
• Cosmetics, as a hair relaxer that straightens hair by chemically uncurling it
• Detergents: synergistic agent
• Pharmaceuticals
• Microencapsulation process: for carbonless paper