Hexamidine Diisethionate salt is a water-soluble cationic substance. It is neutralized by an organic base (hexamidine) and an acid (hydroxyethylsulfonic acid).
Tested Items | Specifications | Results |
Appearance | White to off-white powder | White powder |
IR | Should be consistent with that of the reference product | Complies |
Qualitative Identification | Dissolve about 40 mg in 5 mL of water and add dropwise with shaking 1 mL of a 100 g/L solution of sodium chloride. Allow to stand for 5 min. An abundant,shimmering white precipitate is slowly formed. | Complies |
HPLC | The retention time of the main peak of the test solution should be the same as that of the control solution | Complies |
Loss on drying | ≤0.3% | 0.22% |
Residue on ignition | ≤0.1% | 0.02% |
Purity | ≥99.0% | 99.30% |
Hexamidine content | 57.5-59.5% | 58.30% |
Pb | ≤10mg/kg | ND |
As | ≤2mg/kg | ND |
Hg | ≤1mg/kg | ND |
Cd | ≤5mg/kg | ND |
Total bacterial cfu/g | ≤200cfu/g | <10 cfu/g |
Molds and Yeast Count,cfu/g | ≤100cfu/g | <10 cfu/g |
Thermotolerant Coliforms /g | Negative | ND |
Staphylococcus aureus /g | Negative | ND |
P.Aeruginosa /g | Negative | ND |
It is mild and non-irritating, and has the advantages of high-efficiency broad-spectrum antibacterial and bactericidal capabilities, and is widely used in personal care products. It has unique advantages in anti-dandruff, anti-acne and anti-odor formulations.
Topical preparations.
Preservatives in skin care and personal care products.
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