Polyquaternium – 1
Pharma Grade
CAS #:
75345-27-6
Molecular Formula:
C22H48Cl3N3O6
Synonym:
Polyquat
Molecular Weight:
810.21g/mol
Overview
Ophthalmic preservatives, such as Polyquaternium-1 (PQ-1), are critical for the inhibition of growth of microbial contaminants in multi-dose bottles of topical medications.
| Characters | Unit | Specification |
|---|---|---|
| Appearance | Light yellow to Agate crystal powder | |
| Odour | Without stimulation | |
| Water Solubility | 100 % Soluble | |
| Free Amin | % | ≤ 2.0 |
| Residue on Ignition | % | ≤ 2.0 |
| Heavy Metals | ppm | ≤ 20 |
| pH | 6.0 - 9.0 | |
| Chloride | % | ≤ 25 |
| Solid Content | % | ≥ 95 |
| Assay | % | 95 - 100 |
| Total Aerobic Bacteria | cfu/g | ≤ 100 |
| Fungi/Yeast | cfu/g | ≤ 10 |
| Enterobacteria in 1g | Negative | |
| Pseudomonas Aeruginosa in 1 g | Negative | |
| Staphylococcus Aureus in 1 g | Negative |
Storage/Shipping Conditions:
- Keep containers closed.
- Temperature not more than 32℃
Pack Sizes: 100 gm
