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Description
Guanidine Carbonate is the carbonate salt of guanidine, an organic compound known as one of the strongest neutral organic bases. The carbonate salt form is chosen because free guanidine is highly hygroscopic and difficult to handle, whereas its salt is a stable crystalline solid that is easy to weigh out. In the laboratory, this material serves as a practical source of the guanidine group for organic synthesis, particularly in the formation of nitrogen heterocyclic rings, and it is also used as a base in a variety of condensation and alkylation reactions.
The property that makes Guanidine Carbonate a widely preferred choice is its ability to release the guanidine base gradually within the reaction medium, so that basic conditions are reached without the sharp pH spike associated with strong inorganic bases. The carbonate ion that is released as carbon dioxide also simplifies product purification, since it leaves behind no salt residue that is difficult to separate. The guanidine group, with its three nitrogen atoms, is an efficient nitrogen source for constructing the pyrimidine, triazine, and aminopyrimidine frameworks frequently encountered in bioactive compounds and dye materials.
Organic synthesis laboratories in Indonesia, both in universities and in industrial research settings, use this material in the preparation of heterocyclic intermediates and in methodology work where a moderate, controlled base is required. It is handled as a routine bench reagent: weighed out as a crystalline solid, introduced into the reaction medium, and stored between uses without the special handling that the free base would demand.
Laboratory Applications
Nitrogen heterocycle synthesis: the three nitrogen atoms of the guanidine group supply the ring nitrogens needed to construct pyrimidine and triazine frameworks efficiently in a single reagent.
Aminopyrimidine preparation: serves as the guanidine building block in ring-forming reactions that generate aminopyrimidine cores common to bioactive compounds and pharmaceutical intermediates.
Condensation reactions: acts as a moderate base that establishes the required basic conditions gradually, avoiding the sharp pH spikes produced by strong inorganic bases.
Alkylation reactions: provides controlled basicity for deprotonation steps while the carbonate leaves as carbon dioxide, so no troublesome salt residue complicates the subsequent workup.
Dye and colorant intermediate work: contributes the guanidine moiety used in building the nitrogen-rich heterocyclic skeletons that underpin many dye materials.
Specifications
Brand: TCI
CAS number: 593-85-1
Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes: available in standard TCI research pack sizes; please confirm the size required when ordering.
Physical form: stable crystalline solid
Storage: keep in a tightly closed container in a cool, dry place
Handling and Storage
Store Guanidine Carbonate in a tightly closed container in a cool, dry location, away from moisture and from direct sunlight. Original supplier containers or well-sealed glass or plastic bottles with secure caps are suitable; keep the closure tight between uses so the solid remains free-flowing and easy to weigh. Handle the material in a well-ventilated area or in a fume hood, and wear standard laboratory personal protective equipment including safety glasses, gloves, and a laboratory coat. Avoid raising dust during weighing and transfer, avoid contact with skin and eyes, and wash hands thoroughly after handling. Use clean, dry spatulas to prevent contamination of the stock, and label all working containers clearly. Consult the manufacturer's safety data sheet before first use and follow institutional waste disposal procedures.
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