Hydroquinone Dipropionate-Cosmetic Whitening Raw Material(CAS 7402-28-8)
Product Name: Hydroquinone Dipropionate
INCI Name: Hydroquinone Dipropionate
Chemical Name: 1,4-Benzenediol Dipropanoate
CAS No.: 7402-28-8
Grade: Cosmetic Grade (Skin Whitening Special)
Purity: ≥99.0%
Appearance: White or Off-White Crystalline Powder
Molecular Weight: 222.24
Molecular Formula: C₁₂H₁₄O₄
MOQ (Minimum Order Quantity): 1KG
Solubility: Insoluble in water, easily soluble in ethanol, propylene glycol, ester solvents and cosmetic oil phases
Stability: Excellent light and thermal stability, not easy to oxidize and discolor, stable in neutral and weakly acidic formulas
Melting Point: 62℃-66℃
Key Characteristics: Efficient melanin inhibition, mild and low irritation, high oxidation resistance, no discoloration, long-term whitening efficacy, excellent formula compatibility
Storage Condition: Sealed, dry, cool and dark environment, avoid high temperature, strong light and humid environment, prevent oxidation and agglomeration
Shelf Life: 24 Months
Application: Widely used in high-end whitening essence, brightening lotion, freckle-removing cream, skin lightening and dullness-improving cosmetic products
Hydroquinone Dipropionate, Cosmetic Whitening Raw Material, Skin Brightening Agent, Melanin Inhibitor, High Stability Lightening Ingredient, Low Irritation Skin Care Additive
Hydroquinone Dipropionate-Cosmetic Whitening Raw Material(CAS 7402-28-8)
Cosmetic-grade Hydroquinone Dipropionate is a high-efficiency, high-stability mild whitening functional cosmetic raw material, which is a derivative of hydroquinone after esterification modification. Compared with traditional hydroquinone whitening ingredients, it completely solves the defects of easy oxidation, discoloration and strong irritation, retaining excellent melanin inhibitory activity while achieving ultra-high formula stability.
It can effectively act on the melanin synthesis pathway, inhibit the activity of tyrosinase from the source, block melanin production and deposition, fade facial freckles, sunburn, chloasma and post-inflammatory dullness, and significantly brighten skin tone and uniform complexion.
With mild molecular structure, low skin irritation and no sensitization risk, it is safer and more friendly than traditional whitening ingredients. The product is not easy to oxidize and turn yellow in the formula, will not cause product discoloration and deterioration, and has good compatibility with common whitening and anti-aging ingredients. Fully compliant with cosmetic safety standards, it is a core high-quality raw material for medium and high-end stable whitening and brightening skin care products.
Key Benefits
• High Efficiency Melanin Inhibition: Precisely inhibit tyrosinase activity, block melanin synthesis and deposition, fade various pigmentations and brighten dull skin efficiently.
• Ultra-High Formula Stability: Esterification modified structure, excellent light and heat resistance, no oxidation, no yellowing and no discoloration in long-term storage of finished products.
• Mild & Low Irritation: Optimized molecular structure reduces skin irritation significantly, non-sensitizing, safe for long-term facial skin use.
• Long-Lasting Whitening Effect: Stable active ingredients are not easy to inactivate, maintain continuous whitening and freckle-removing efficacy, and extend product valid period.
• Excellent Compatibility: Easy to dissolve in conventional cosmetic solvents, compatible with VC, nicotinamide, retinol and other whitening ingredients, synergistic brightening effect.
• High Purity & High Safety: Cosmetic grade purification process, low impurity content, compliant with global cosmetic safety regulations.
Applications
• Whitening & Brightening Essence: Core functional raw material for high-efficiency whitening essence, lightening serum, targeting facial dullness, yellowish complexion and pigmentation problems.
• Freckle & Spot Removing Cream: Applied in professional spot-removing cream, lightening cream, effectively fade chloasma, sun spots, freckles and post-acne marks.
• Brightening Lotion & Toner: Added in whitening lotion, brightening toner and facial moisturizer to uniform skin tone and improve overall skin translucency.
• Post-Sun Repair Skin Care: Used in after-sun repair products to inhibit secondary melanin precipitation and prevent tanning and darkening after sun exposure.
• High-End Stable Whitening Series: Ideal raw material for high-end skin care products pursuing high stability, no discoloration and mild efficient whitening effect.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | Hydroquinone Dipropionate | Compliant |
CAS No. | 7402-28-8 | Compliant |
Appearance | White or Off-White Crystalline Powder | Compliant |
Purity | ≥99.0% | 99.65% |
Melting Point | 62℃ - 66℃ | 63.8℃ |
Loss on Drying | ≤0.3% | 0.15% |
Residue on Ignition | ≤0.1% | 0.06% |
Heavy Metal (Pb) | ≤10ppm | Qualified |
Heavy Metal (As) | ≤2ppm | Qualified |
Microorganism | Sterile, Compliant with Cosmetic Grade Standard | Qualified |
Conclusion | Conforms to cosmetic grade quality standard | Qualified |
Frequently Asked Questions (FAQ)
• Q1: What is the MOQ of cosmetic grade Hydroquinone Dipropionate? A1: The standard MOQ is 1KG, and sample orders are supported for quality testing.
• Q2: What export certification documents can be provided? A2: Complete COA, MSDS and full set of global customs clearance documents are available.
• Q3: What is the recommended dosage in whitening formulas? A3: The conventional addition ratio is 0.5%-2.0% for most whitening and brightening cosmetic formulas, with stable and efficient whitening effect.
• Q4: What is the advantage compared with ordinary hydroquinone? A4: It adopts esterification modification, with ultra-high light and thermal stability, no yellowing and discoloration, lower irritation and safer use while maintaining strong melanin inhibitory ability.
• Q5: What ingredients is it suitable for compounding with? A5: It can be perfectly compounded with nicotinamide, VC derivatives, retinol and other whitening and anti-aging ingredients to achieve synergistic brightening and spot fading effects.
• Q6: Do you support stable large-batch supply all year round? A6: Sufficient factory capacity ensures continuous and stable bulk supply throughout the year.
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