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

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