TCS Industries Limited (China-sourced API supplier) supplies Avobenzone –- Broad-Spectrum UVA Sunscreen Filter CAS 70356-09-1 for pharmaceutical B2B procurement — COA, MSDS, and technical documentation available on request.
> Overview
| Product Name | Avobenzone –- Broad-Spectrum UVA Sunscreen Filter |
|---|---|
| Structural Formula |  |
| CAS Number | 70356-09-1 |
| Molecular Formula | C₂₀H₂₂O₃ |
| Molecular Weight | 310.4 g/mol |
| InChIKey | XNEFYCZVKIDDMS-UHFFFAOYSA-N |
| SMILES | Available on request where applicable |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity / Grade | By agreed specification and batch COA |
| Storage | Keep tightly closed in a cool, dry, well-ventilated place |
Avobenzone (CAS 70356-09-1) is an oil-soluble dibenzoylmethane derivative with the formula C₂₀H₂₂O₃ (MW 310.39), also known as Butyl Methoxydibenzoylmethane (BMDBM). It is a widely used UVA filter in sunscreen formulations globally, absorbing across the 310–400 nm UVA range with peak absorption at 357 nm. Avobenzone is approved as a sunscreen active in the US (FDA OTC monograph), EU (Annex VI of Regulation 1223/2009), and most global markets.
TCS Industries Limited, a Hong Kong-based trading and sourcing company, supplies Avobenzone in cosmetic-grade bulk for sunscreen and UV-protective formulation programs.
> Applications
Broad-spectrum UVA sunscreen filter
Avobenzone is the primary UVA filter in broad-spectrum sunscreen formulations, used at concentrations up to 3% (US) or 5% (EU). It is typically combined with UVB filters (octinoxate, octisalate, homosalate) and photostabilizers (octocrylene, ethylhexyl methoxycrylene) to achieve broad-spectrum SPF/UVA-PF claims. Photostabilization is essential: avobenzone undergoes Norrish Type I cleavage under UV exposure, losing 50–90% activity within 1 hour without stabilizers. Mturi et al. (J Photochem Photobiol A, 2008, 200:410–420) characterized the photodegradation kinetics and stabilization strategies for avobenzone.
UV-protective cosmetic and personal care formulations
Beyond dedicated sunscreens, avobenzone is incorporated into daily moisturizers, foundations, lip products, and hair care formulations requiring UV protection. Oil-in-water and water-in-oil emulsion systems both accommodate avobenzone, though dissolution in the oil phase at elevated temperature (typically 75–80 °C) is required during manufacturing.
> Sourcing & Supply
TCS Industries Limited supports development, qualification and commercial purchasing discussions for Avobenzone –- Broad-Spectrum UVA Sunscreen Filter with buyers in South America, Europe, the United Kingdom, Australia, New Zealand, Mexico and Canada.
- Evaluation and commercial quantities: 1 kg samples for stability testing; 25 kg drums for production. Cosmetic grade (sunscreen active). Photostabilizer combinations can be discussed.
- Pallet quantities and production campaigns: repeat supply is coordinated against packaging, lead time, annual demand and destination-market import requirements.
> Quality & Documentation
Key specification parameters include assay (≥98.0% by HPLC), melting point (81–86 °C), related substances, residual solvents, heavy metals (Pb, As, Hg), colour (off-white to pale yellow crystalline powder), and particle size. UV absorption spectrum with λmax at 357 ± 2 nm in ethanol confirms identity. Photostability testing per ISO 24443 is relevant for finished formulation validation. COA and MSDS are standard.
> Packaging
Avobenzone is an off-white to pale yellow crystalline powder, stable at room temperature. Standard packaging includes 25 kg fibre drums with PE liner. Store at controlled room temperature (15–25 °C) protected from light. Shelf life is typically 36 months. Labels and documents are checked before dispatch.
> Pricing & MOQ
Pricing is quoted by specification, packaging and destination. Common commercial discussions use 25 kg bag/drum formats, pallet quantities and production-campaign planning; smaller samples may be reviewed for qualified formulation teams.
> Regulatory & Compounding Context
Avobenzone is approved as a sunscreen active ingredient in the US (FDA OTC, max 3%), EU (Annex VI, max 5%, INCI: Butyl Methoxydibenzoylmethane), Australia (max 5%), Japan (max 10%), and most global markets. Listed in the PCPC/INCI Dictionary. Cosmetic-grade material must comply with relevant purity requirements for leave-on products. Buyers should confirm the maximum permitted concentration for their target market at inquiry.
> Alias Index
- INCI: Butyl Methoxydibenzoylmethane (BMDBM)
- CAS Number: 70356-09-1
- Formula: C₂₀H₂₂O₃ (MW 310.39)
- UV filter type: UVA, λmax 357 nm
- Trade names: Parsol 1789, Eusolex 9020, Neo Heliopan 357
- InChIKey: UXPFCNURXKNFBH-UHFFFAOYSA-N
- Commercial request terms: avobenzone bulk, BMDBM sunscreen grade, UVA filter, Parsol 1789 alternative, TCS Industries Limited
> FAQ
Why does Avobenzone need photostabilization?
Avobenzone undergoes Norrish Type I photodegradation under UV radiation, losing absorption capacity within hours. Photostabilizers (octocrylene, ethylhexyl methoxycrylene, diethylhexyl syringylidenemalonate) quench the excited state and prevent degradation. Formulation without photostabilizer will fail in-use SPF testing.
What documents are available for Avobenzone –- Broad-Spectrum UVA Sunscreen Filter orders?
COA and MSDS are standard for commercial discussions. COO, packing list, invoice and other import-support documents can be arranged according to order scope.
Can TCS Industries Limited support Avobenzone –- Broad-Spectrum UVA Sunscreen Filter supply to South America?
Yes. We support B2B buyers in Argentina, Colombia, Chile, Peru, Ecuador, Uruguay, Bolivia, Brazil, Paraguay, Venezuela, Guyana and Suriname, subject to route and document review.
Do you support Europe, the United Kingdom, Australia, New Zealand, Mexico and Canada?
Yes. These destinations can be reviewed for project supply, import documents, packaging and logistics planning before quotation.
What is the maximum permitted concentration of Avobenzone?
US (FDA OTC): 3%. EU (Regulation 1223/2009 Annex VI): 5%. Japan: 10%. Australia: 5%. The regulatory maximum varies by jurisdiction. Specify target market to confirm the applicable limit.
Is Avobenzone compatible with mineral sunscreen filters?
Avobenzone is compatible with zinc oxide and titanium dioxide in combination sunscreen formulations. However, uncoated metal oxides can catalyze avobenzone degradation. Coated mineral filters (silica-coated, dimethicone-coated) are recommended for combination formulations.
Can you arrange samples before commercial purchasing?
Samples or evaluation quantities may be reviewed for qualified buyers after target specification, application and destination-market requirements are clarified.
How is Avobenzone –- Broad-Spectrum UVA Sunscreen Filter packaged for export?
Packaging is confirmed by quantity and material properties. Typical options include foil bags, HDPE containers, fibre drums, 25 kg bags or palletized export packaging.
Can buyer-defined specifications be reviewed?
Yes. Send the specification, methods, impurity limits and required documents. TCS can review feasibility before confirming quotation and lead time.
What payment terms are normally used?
Standard payment is 100% T/T before dispatch unless a different arrangement has been approved for an established commercial account.
What lead time should buyers expect?
Lead time depends on stock, batch size, document scope and destination. Available stock can move faster; made-to-order or pallet programs require longer planning.
What is the difference between Avobenzone and Octocrylene?
Avobenzone (CAS 70356-09-1) is a UVA filter (λmax 357 nm). Octocrylene (CAS 6197-30-4) is a UVB filter (λmax 303 nm) that also functions as a photostabilizer for avobenzone. They are typically used together in broad-spectrum sunscreen formulations.
Last reviewed: June 2026
Evaluation and research orders (≤10 kg) are shipped with COA, MSDS, and certificate of origin. Bulk commercial orders (>10 kg) qualify for volume pricing with a full technical documentation package available on request.
> Request a Quote
If your team already has a target application, estimated quantity, destination market, or documentation requirements, send those details so the commercial response can be prepared more efficiently.