Polyquaternium-1/PQ-1 CAS: 75345-27-6
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Category：Active Pharmaceutical Ingredients Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
white powder or light yellow liquid. Used as pharmaceutical raw materials, an important bacteriostatic agent of eye drops.
Details
Polyquaternium-1/PQ-1 is a detergent-based preservative derived from BAK. PQ-1 was formulated by Alcon in the mid-1980s as a preservative for contact lens storage solutions. Today, it is increasingly used as a preservative in glaucoma eye drops and artificial tears
Specifications
Item Specifications
Appearance Clarify,amber,viscous liquid
Smell without stimulation
Molecular weight 6500-57000Da
Chloride <10%
Assay >33%
Free amine <2.0%
PH 6~9
Water solubility whole soluted
Package: solution: 1KG/bottle, powder: 100G/bag.
Storage: in a dry and ventilated warehouse; keep away from sunshine; avoid fire; avoid moisture.
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Property
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Details
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Chemical Name
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Polyquaternium – 1/PQ – 1
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CAS Number
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75345 – 27 – 6
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Molecular Structure
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It is a polymer. Generally consists of repeating units containing quaternary ammonium groups, which contribute to its cationic nature. The exact structure can vary depending on the degree of polymerization and the specific synthesis method.
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Appearance
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Usually appears as a viscous liquid or a gel – like substance, often colorless to slightly yellowish.
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Solubility
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Soluble in water. Its good water – solubility makes it easy to incorporate into aqueous – based formulations.
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Function in Industry
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Cosmetics and Personal Care: It is widely used as a conditioning agent in hair care products like shampoos, conditioners, and hair styling products. It can improve the manageability of hair, reduce static, and enhance softness. In skin care products, it can act as a humectant, helping to retain moisture and improve skin feel. Textile Industry: Used for fabric softening and anti – static treatment. It adheres to the fabric surface, providing a soft and smooth handfeel and reducing the build – up of static electricity during use. Water Treatment: Can be used as a coagulant aid. The cationic nature of Polyquaternium – 1 can interact with negatively charged particles in water, facilitating the coagulation process and improving the efficiency of water purification.
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Stability
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Stable under normal conditions. However, extreme pH values or high temperatures for extended periods may affect its performance. In some cases, it may react with certain anionic substances, so care should be taken when formulating products to avoid compatibility issues.
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Safety Considerations
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Generally regarded as safe for use in the concentrations typically used in consumer products. However, as with any chemical, some individuals may be sensitive or allergic to it. In industrial applications, proper handling procedures should be followed to avoid contact with eyes and skin, and adequate ventilation should be ensured during use.
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