Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

SKC PG USP Propylene Glycol USP Grade

SKC PG USP Propylene Glycol USP Grade is a high-purity, pharmaceutical-grade propylene glycol manufactured by SKC under strict USP monograph compliance. It meets stringent requirements for safety, clarity, and low volatility—ideal for oral, topical, and injectable formulations. This USP-certified grade ensures consistent quality, low heavy metals, and minimal aldehyde content. Widely used in pharmaceuticals, cosmetics, and food applications, it offers excellent solvency, hygroscopicity, and biocompatibility.
  • skc pg usp propylene glycol usp grade_1ae9db1e
  • skc pg usp propylene glycol usp grade_1ae9db1e

Features Of SKC PG USP Propylene Glycol USP Grade

  1. Manufactured to strict USP Propylene Glycol monograph requirements for pharmaceutical and personal care use.

  2. High chemical purity with low residual propylene oxide and aldehyde content, ensuring formulation stability.

  3. Non-toxic, non-irritating, and GRAS (Generally Recognized As Safe) affirmed by FDA for food and drug applications.

  4. Excellent hygroscopicity and solvent capacity for active ingredients, fragrances, and preservatives.

  5. Consistent batch-to-batch performance supported by comprehensive COA and full traceability documentation.

Typical Applications Of SKC PG USP Propylene Glycol USP Grade

  1. Pharmaceutical liquid dosage forms including oral solutions, elixirs, and topical gels.

  2. Personal care products such as moisturizers, shampoos, and toothpastes as a humectant and solubilizer.

  3. Food-grade flavor carriers and preservative systems compliant with FDA 21 CFR §184.1666.

  4. Vaccine and biologics formulation excipient for stabilizing proteins and maintaining isotonicity.

  5. Medical device lubricants and cleaning agent components in Class II/III device manufacturing.

Specifications Of SKC PG USP Propylene Glycol USP Grade

Chemical TypePropylene Glycol (1,2-Propanediol)
Product FormClear, colorless liquid
AppearanceClear, odorless, slightly viscous liquid
Assay (as C₃H₈O₂)99.5–100.5% w/w
Residue on Ignition≤ 0.1% w/w
Heavy Metals (as Pb)≤ 10 ppm
pH (10% aqueous solution)4.0–7.0
Water Content≤ 0.2% w/w (Karl Fischer)


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