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 Glycerol Formal CAS 99569-11-6: Properties and Applications

Glycerol Formal (CAS 99569-11-6) is a glycerol-derived cyclic acetal solvent used in pharmaceutical, veterinary, agrochemical, and specialty chemical formulations. Its combination of polar functionality, solvent capacity, and relatively high boiling point makes it a useful option for specialized formulation systems.

What Is Glycerol Formal?

Glycerol Formal is produced through the acetalization of glycerol with formaldehyde. Commercial material generally contains two cyclic acetal isomers:

• 5-Hydroxy-1,3-dioxane
• 4-Hydroxymethyl-1,3-dioxolane

The exact isomer ratio depends on the manufacturing process and product specification.

Typical commercial reference data include an assay of around 98% or higher, a boiling point of approximately 192–193°C, and a density of about 1.20 g/mL at 25°C. Actual specifications should be confirmed by the product COA.

Key Applications

Pharmaceutical & Veterinary Formulations

Glycerol Formal can function as a solvent or co-solvent for active ingredients with limited water solubility. It has also been investigated in injectable, depot, and controlled-release formulation systems.

Its potential applications include:

• Solubilization of poorly water-soluble APIs
• Injectable formulation development
• Long-acting and depot delivery systems
• Veterinary pharmaceutical formulations

The appropriate concentration and grade should be determined through formulation compatibility and stability testing.

Agrochemical Formulations

Glycerol Formal can also be evaluated as a solvent or co-solvent for selected pesticide active ingredients. It may help formulators develop concentrated liquid systems and improve the incorporation of active ingredients with limited water compatibility.

Specialty Chemical Applications

Because of its cyclic acetal structure and relatively high boiling point, Glycerol Formal is also relevant to chemical synthesis and specialty solvent applications.

Why Choose Glycerol Formal?

When selecting a specialty solvent, formulators typically evaluate more than solubility alone. Important factors include:

• API or active-ingredient compatibility
• Water compatibility
• Chemical and formulation stability
• Viscosity and processing characteristics
• Solvent evaporation behavior
• Regulatory requirements

Glycerol Formal can therefore be considered as part of a tailored solvent system, rather than as a universal replacement for conventional solvents.

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FAQ

What is Glycerol Formal used for?
It is primarily used as a solvent or co-solvent in pharmaceutical, veterinary, agrochemical, and specialty chemical formulations.

Can Glycerol Formal dissolve poorly water-soluble APIs?
It can be evaluated as a solvent/co-solvent for selected poorly water-soluble compounds, but compatibility should be verified for each specific API.

What should buyers consider when sourcing Glycerol Formal?
Key factors include assay, isomer composition, water content, impurity limits, COA/SDS documentation, packaging, and destination-market requirements.

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 Raffinose (CAS 512-69-6): Properties, Food Applications and Formulation Considerations

As the food industry continues to move toward functional nutrition, digestive-health-oriented products, and more sophisticated carbohydrate systems, Raffinose (CAS 512-69-6) has attracted increasing interest as a functional carbohydrate ingredient.

Unlike conventional monosaccharides, Raffinose is a naturally occurring trisaccharide with a distinct structural profile and potential prebiotic properties. These characteristics make it an interesting ingredient for food manufacturers and formulators exploring new functional food concepts.

What Is Raffinose?

Raffinose is a trisaccharide consisting of galactose, glucose, and fructose. It occurs naturally in various plant-based foods, including legumes, vegetables, and some grains.

From a chemical and nutritional perspective, Raffinose belongs to the family of oligosaccharides that can reach the lower gastrointestinal tract because humans do not produce sufficient α-galactosidase to completely hydrolyze it in the small intestine.

As a result, Raffinose can be utilized by microorganisms in the large intestine, which is one of the reasons it has attracted attention in research and functional food development.

Chemical Name: Raffinose
CAS No.: 512-69-6
Type: Functional carbohydrate / trisaccharide

Raffinose and Prebiotic-Focused Food Development

One of the main reasons Raffinose is of interest to the food industry is its potential relationship with the intestinal microbiota.

When Raffinose reaches the colon, it can be fermented by certain intestinal microorganisms. This characteristic has led to its investigation as a potential prebiotic carbohydrate.

For food formulators, this creates opportunities to develop products positioned around functional nutrition and gut-health concepts.

However, it is important to distinguish between ingredient functionality and specific health claims. The regulatory status of Raffinose and any permitted health or nutrition claims can vary between markets, so manufacturers should evaluate applicable regulations before commercializing a product.

Food Industry Applications

Raffinose can be considered for a range of food and nutrition formulations.

1. Functional Foods

Raffinose can be incorporated into selected functional food concepts where manufacturers are looking for alternative carbohydrate ingredients with functional characteristics.

Potential applications include nutrition-oriented foods, formulated foods, and products designed around prebiotic concepts.

2. Functional Beverages

Water-soluble carbohydrate ingredients can be useful when developing powdered or liquid beverage formulations.

Raffinose may therefore be evaluated for functional beverages and nutritional drink systems, subject to the requirements of the specific formulation.

3. Nutritional Powders

Raffinose can be considered in nutritional powders and powdered functional-food formulations.

When used in combination with other ingredients, formulators should evaluate compatibility, moisture control, dissolution behavior, and the overall sensory profile.

4. Dairy and Fermented Products

Raffinose can also be explored in selected dairy and fermented food formulations where functional carbohydrate systems are required.

The actual suitability depends on processing conditions, microbial cultures, formulation composition, and the intended product characteristics.

5. Cereal and Bakery Products

Raffinose may also be investigated in cereal-based and bakery formulations as part of functional carbohydrate development.

In these applications, processing temperature, moisture, texture, and interactions with other ingredients should be considered during formulation development.

Important Formulation Considerations

Although Raffinose offers interesting possibilities, successful food formulation requires more than simply selecting an ingredient.

Solubility and Processing

The required concentration, processing temperature, pH, water activity, and other formulation components can influence the behavior of Raffinose in the finished product.

Pilot-scale testing is recommended before large-scale production.

Sensory Characteristics

Because Raffinose can be fermented by intestinal microorganisms, relatively high intake levels may be associated with gastrointestinal discomfort in some individuals.

Therefore, dosage and formulation design should be carefully evaluated, particularly for products intended for regular consumption.

Regulatory Compliance

Food regulations differ considerably between countries and regions.

Before using Raffinose commercially, manufacturers should confirm:

• Permitted food categories
• Maximum or recommended usage levels where applicable
• Food-grade specifications
• Labeling requirements
• Applicable nutrition or health claims
• Required technical and regulatory documentation

A supplier’s COA, specification sheet, and relevant compliance documentation can be important during ingredient qualification.

Why Raffinose Is Worth Watching

The development of functional foods is increasingly moving beyond traditional nutritional value toward ingredients that can provide additional formulation or physiological functions.

Raffinose sits within this broader trend as a naturally occurring functional carbohydrate with prebiotic potential.

For food manufacturers, nutrition companies, and ingredient formulators, it may provide another tool for developing innovative products in areas such as functional nutrition, specialized carbohydrates, and prebiotic-oriented formulations.

Raffinose Supply for Food Ingredient Development

For commercial applications, consistent quality and reliable supply are just as important as the ingredient itself.

When sourcing Raffinose CAS 512-69-6, buyers should consider product specifications, purity, appearance, packaging, batch consistency, COA availability, documentation, and export experience.

Fortuna Chemical Co.,Ltd provides chemical and functional ingredient sourcing support for international customers and can assist with Raffinose specifications, documentation, packaging options, and bulk supply requirements.

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Raffinose CAS 512-69-6 | Functional Carbohydrate | Food Ingredient | Prebiotic-Oriented Applications

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