Propylene Glycol USP

Propylene Glycol USP (PG USP)

Category: Pharmaceutical & Food Grade Solvent / Humectant / Industrial Chemical

Description

Propylene Glycol USP (PG USP) is a high-purity, colorless, odorless, and slightly viscous liquid used widely in pharmaceutical, food, cosmetic, and personal care formulations. It functions as a solvent, humectant, stabilizer, and carrier for active ingredients. This USP-grade material complies with pharmacopoeia standards, ensuring purity, low toxicity, and suitability for sensitive applications including oral, topical, and inhalation products.

Applications

• Pharmaceutical formulations – syrups, injectables, inhalation products, topical creams
• Food and beverages – humectant, preservative carrier, flavor solvent
• Cosmetics & personal care – lotions, creams, deodorants, shampoos, toothpaste
• E-liquid & vape juice formulations
• Fragrances, flavors & essences
• Moisturizers & emollients in skin-care products
• Industrial uses – antifreeze, heat transfer fluids (special USP blends)

Technical Details

• Chemical Formula: C₃H₈O₂
• CAS Number: 57-55-6
• Grade: USP / EP / FCC compliant
• Appearance: Clear, colorless, hygroscopic liquid
• Odor: Practically odorless
• Density: ~1.036 g/cm³ at 20°C
• Boiling Point: ~188°C
• Freezing Point: ~-59°C
• Solubility: Completely miscible with water, alcohols, esters
• Purity: ≥ 99.5%

Packaging

• 215 kg steel or HDPE drums
• IBC tanks (1000 liters)
• Bulk tanker supply (on request)

Storage & Handling

• Store in a cool, dry, well-ventilated area
• Keep container tightly sealed to avoid moisture absorption
• Protect from direct sunlight and high temperatures
• Use clean, food-grade storage systems for USP uses
• Wear appropriate PPE when handling bulk material