Description

Isogalbulin CAS NO 521-55-1 is a high-purity chemical compound, also known as 3,4,5-Trihydroxybenzoic acid propyl ester, valued for its role as a key intermediate and functional ingredient. Its significance lies in its antioxidant properties and structural utility in advanced synthesis. This product is essential for manufacturers in the pharmaceutical, cosmetic, and specialty chemical industries seeking reliable, high-quality raw materials for research and production.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring antioxidant or polyphenolic motifs.
• Cosmetic & Personal Care Formulations: Acts as a stabilizing antioxidant in creams, lotions, and serums to enhance product shelf life and protect against oxidative degradation.
• Food & Beverage Additive: Employed as a preservative and antioxidant in food-grade applications to maintain freshness and prevent spoilage.
• Research & Development: Serves as a critical reference standard and building block in organic chemistry and biochemical research for studying polyphenol activity.
• Industrial Antioxidant: Incorporated into polymers, lubricants, and coatings to inhibit oxidation and extend the functional life of industrial materials.

Basic Information

Product Name	Isogalbulin
CAS No.	521-55-1
Molecular Formula	C10H12O5
Molecular Weight	212.20 g/mol
Synonyms	Propyl gallate; 3,4,5-Trihydroxybenzoic acid propyl ester; Gallic acid propyl ester; Progallin P; Nipagallin P; E310; Tenox PG; Propyl 3,4,5-trihydroxybenzoate
EINECS	208-313-5

Quality Control

Our Isogalbulin is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Quality assurance includes comprehensive testing against established specifications for identity, assay, and impurity profiles. Certificates of Analysis (COA) documenting compliance with relevant standards, including FCC and pharmaceutical-grade requirements where applicable, are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is light-sensitive and easily oxidized; prolonged exposure to air and light should be avoided to maintain stability and potency. For long-term storage, consider an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	148°C - 152°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.