Phloroglucinol dihydrate

Phloroglucinol dihydrate is a high-purity analytical-reagents supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

1. Pharmaceutical Industry

Phloroglucinol dihydrate is widely used in the pharmaceutical field as both an active pharmaceutical ingredient (API) and an intermediate:

Spasmolytic Agent:

Used to relieve smooth muscle spasms, especially in the gastrointestinal and urinary tracts.

Often formulated with other agents (e.g., phloroglucinol + trimethylphloroglucinol) in treatments for irritable bowel syndrome, biliary colic, and dysmenorrhea.

Analgesic & Antispasmodic Drugs:

Included in combination medications to treat pain from cramping or spasms.

Bladder Disorders:

Used in therapies for urinary tract pain and interstitial cystitis.

2. Chemical Intermediate

Phloroglucinol is a versatile intermediate in organic synthesis due to its high reactivity from the electron-rich trihydroxybenzene ring.

Dye & Pigment Synthesis:

Used in the production of certain azo dyes and phloroglucides.

Fluorescent Probes & Indicators:

Serves as a precursor in fluorescent or colorimetric detection chemistry, often in biochemical assays.

Polyphenolic Resin Synthesis:

Participates in the synthesis of phenol-formaldehyde type resins, adhesives, and crosslinked polymers.

3. Biochemical and Analytical Uses

Reagent for Lignin Detection:

Employed in histochemistry for detecting lignin in plant tissues using the Wiesner reaction (phloroglucinol-HCl reagent), which gives a red color.

Chromatographic & Spectroscopic Studies:

Used as a reference standard or component in HPLC, UV, and colorimetric analysis.

4. Research in Natural Product Chemistry

Model Compound for Polyphenols:

Serves as a structural model for flavonoids and tannins in studies related to antioxidant behavior, structure–activity relationships, and radical scavenging mechanisms.

Plant Biochemistry:

Helps elucidate biosynthetic pathways involving phenolic compounds in plants.

1. Potent Antispasmodic Activity

In its pharmaceutical form, phloroglucinol:

Relaxes smooth muscles without affecting normal muscle tone.

Has rapid onset and low toxicity, making it ideal for oral and injectable formulations.

Useful in patients sensitive to anticholinergic side effects (e.g., dry mouth, blurred vision), as it does not affect the autonomic nervous system.

2. Mild and Safe Profile

As a naturally derived compound (originally from plant sources), phloroglucinol has a good safety margin.

Suitable for use in pediatric and geriatric patients under appropriate medical guidance.

3. Water-Soluble and Stable Form

The dihydrate form enhances solubility in water, allowing for:

Easier formulation into injections, tablets, and suppositories.

Better handling and storage stability compared to the anhydrous form.

4. Versatile Synthetic Utility

Its three hydroxyl groups and aromatic ring make it ideal for:

Electrophilic substitution

Chelation chemistry

Functionalization for advanced organic synthesis

This versatility makes phloroglucinol dihydrate useful across industries - from pharmaceuticals to polymers.

Phloroglucinol dihydrate (CAS 6099-90-7) is a highly valuable compound with diverse pharmaceutical, analytical, and synthetic applications. Its primary benefit lies in its effective spasmolytic action with minimal side effects, making it widely used in treatments for gastrointestinal and urinary disorders. Additionally, its chemical structure lends itself to broad uses in organic synthesis, plant biochemistry, and industrial chemistry. As a water-soluble and relatively safe compound, it continues to play a significant role in modern medicinal and chemical research.

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