Avobenzone

Name: Avobenzone - Amaris Chemicals Solutions
SKU: ACS29719CHEM0
Price: 0.01 KES
Availability: InStock

KSh0.01

Avobenzone is a key organic compound widely used as a broad-spectrum UVA filter in sunscreens and cosmetic products. Its primary function is to absorb harmful UVA rays (320-400 nm), which are responsible for skin aging, wrinkles, and long-term DNA damage. Unlike UVB blockers, avobenzone specifically protects against deep-penetrating UVA radiation, making it an essential ingredient in many sun protection formulations. To ensure effectiveness, it is often combined with UVB filters like octinoxate for full-spectrum defense and stabilized with compounds like octocrylene or antioxidants to prevent photodegradation. Beyond sunscreen lotions, avobenzone is incorporated into daily skincare products such as moisturizers, foundations, and anti-aging creams to provide consistent UV protection. While generally recognized as safe by regulatory bodies like the FDA and EU, it can degrade when exposed to sunlight unless properly stabilized and may cause irritation in sensitive individuals. For improved photostability, modern formulations frequently pair avobenzone with advanced filters like Tinosorb or Mexoryl.

Add to compare

SKU: ACS29719CHEM0 Category: UV Filters Tags: avobenzone, sunscreen, uv filter

Description

AVOBENZONE USES

Sun Protection

UVA Filter: Blocks long-wave UVA rays (320–400 nm), preventing skin aging, wrinkles, and DNA damage.
Often Combinedwith UVB filters (like Octinoxate or Octocrylene) for full-spectrum SPF protection.

Skincare & Cosmetics

Added to moisturizers, foundations, lip balms, and anti-aging products for daily UV defense.
Stabilized with Octocrylene or antioxidants(e.g., Vitamin E) to prevent degradation in sunlight.

Photostability Enhancement

Modern formulations pair it with Tinosorb or Mexorylto improve its longevity under UV exposure

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “Avobenzone”

KEY ATTRIBUTES

1. Basic Identification Attributes

Chemical Name: 1-(4-Methoxyphenyl)-3-(4-tert-butylphenyl)propane-1,3-dione
CAS Number: 70356-09-1
HS Code: 2914.70.90 (Other ketones)
Molecular Formula: C₂₀H₂₂O₃
Synonyms:

4-tert-Butyl-4'-methoxydibenzoylmethane

2. Physical & Chemical Properties

Physical State: Pale yellow crystalline powder
Melting Point: 80-85°C
Molecular Weight: 310.39 g/mol
Solubility:
- Oil-soluble (up to 5% in common cosmetic oils)
- Insoluble in water
UV Absorption:
- λmax: 357 nm (broad UVA protection: 310-400 nm)
- Molar Extinction Coefficient: ~25,000 L·mol⁻¹·cm⁻¹
Photostability:
- Unstabilized: Loses ~36% efficacy after 1 MED (Minimum Erythemal Dose)
- Stabilized (with octocrylene): <10% degradation

3. Safety & Hazard Attributes

Hazard Class (GHS): Not classified (approved for topical use)
Skin Penetration: <0.5% systemic absorption (FDA studies)
Photoreactivity:
- Forms reactive species under UV without stabilizers
- Must be combined with photostabilizers (e.g., octocrylene, Tinosorb® S)

4. Regulatory & Compliance Attributes

Global Approvals:
- FDA: Permitted up to 3% concentration (21 CFR 352.10)
- EU: Max 5% (Regulation (EC) No 1223/2009)
- China: Approved (2021 IECSC update)
Ecotoxicity:
- LC50 (fish): >100 mg/L
- Not readily biodegradable

5. Formulation Considerations

Optimal Concentration: 2-3% in sunscreens
Incompatibilities:
- Mineral UV filters (ZnO/TiO₂) without surface coating
- Oxybenzone (accelerates degradation)
Stabilization Systems:
- Triazine derivatives (e.g., Tinosorb® S)
- OMC (Octyl Methoxycinnamate) in fixed ratios

6. Environmental Impact

Persistence: Detected in wastewater (0.1-5 μg/L)
Coral Reef Safety: Under review (Hawaii SB 2571

SAFETY PRECAUTIONS

Personal Protection:

Gloves:Nitrile or neoprene gloves (chemical-resistant)
Eye Protection:Safety goggles or face shield (prevent splash contact)
Respiratory Protection:NIOSH-approved N95 mask (for powder handling) or organic vapor respirator (if aerosolized)
Clothing:Lab coat or chemical-resistant apron

Handling & Storage:

Ventilation:Use in a well-ventilated area or fume hood
Avoid Contact:Prevent skin, eye, and inhalation exposure
Storage:Keep in a cool, dark place (light-sensitive) in tightly sealed containers
Hygiene:Wash hands thoroughly after handling

Incompatibilities:

Strong oxidizers(e.g., hydrogen peroxide, chlorinated compounds) → May cause degradation
Heavy metals(e.g., iron, copper) → May catalyze decomposition
Extreme pH conditions→ Can destabilize the compound

Inhalation (Dust or Aerosol Exposure):

Move to fresh air immediately
If breathing difficulties occur, administer oxygen
Seek medical attention if symptoms persist

Skin Contact:

Remove contaminated clothing
Wash affected area with soap and water for at least 15 minutes
If irritation develops, seek medical advice

Eye Contact:

Rinse immediately with lukewarm water for 15+ minutes (hold eyelids open)
Seek immediate medical attention

Ingestion:

Do NOT induce vomiting
Rinse mouth with water
Drink water to dilute
Seek medical attention if large amounts are ingested

Fire Hazards:

Not flammable, but decomposes at high temperatures (>200°C/392°F)
Decomposition products may include:
- Carbon monoxide (CO)
- Carbon dioxide (CO₂)
- Nitrogen oxides (NOx)

Extinguishing Media:

Water spray(cool containers, avoid direct jets)
CO₂, dry chemical, or foam

Firefighter Protection:

Wear SCBA (self-contained breathing apparatus)
Full protective gear to avoid skin/eye contact with decomposition products

Special Considerations:

Avoid inhaling smoke/fumes (potential respiratory irritant)
Prevent runoff from entering drains (environmental hazard)

Small Spills:

Absorb with inert material (vermiculite, sand)
Place in a sealed container for disposal

Large Spills:

Contain spill (use barriers)
Wear full PPE (gloves, goggles, respirator)
Avoid dust generation
Dispose of as hazardous waste per local regulations

Disposal:

Follow local hazardous waste guidelines
Do not pour down drains