| Parameter | USP Specification |
|---|---|
| Appearance (25ºC) | Flakes or fine powder |
| Identification | Conforms |
| Assay (%) | 97-103 |
| Average Molecular Weight (g/mol) | 3015-3686 |
| Residue On Ignition (%) | ≤0.1 |
| pH | 4.5-7.5 |
| Water Determination (%) | ≤1.0 |
| Completeness and Color of Solution | Clarity and color of solution |
| Hydroxyl Value (mgKOH/g) | 30-38 |
| Ethylene Oxide (μg/g) | ≤1 |
| Dioxane (μg/g) | ≤10 |
| Ethyl Glycol (%) | ≤0.062 |
| Diethylene Glycol and Ethylene Glycol (%) | ≤0.2 |
| Formaldehyde (μg/g) | ≤15 |
| Formaldehyde and Acetaldehyde (μg/g) | ≤200 |
| Microbial Limit | Conforms |