Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Product Description
BIS-ETHYLHEXYLOXYPHENOL METHOXYPHENYL TRIAZINE (CAS: 187393-00-6), commonly known as Bemotrizinol, is a high-performance oil-soluble broad-spectrum ultraviolet (UV) filter belonging to the triazine derivative family. It appears as a light yellow to yellow crystalline powder, odorless, with excellent photostability and compatibility. It can effectively absorb both UVA and UVB radiation, and is widely used in cosmetics, personal care products, and related industrial fields as a key sunscreen ingredient.
Uses
Cosmetics & Personal Care: As a core UV absorber, it is widely added to sunscreens, day creams, lotions, and other skin care products, providing high SPF and effective UVA protection. It can also stabilize other less photostable UV filters (such as avobenzone) when used in combination, enhancing the overall sun protection effect.
Industrial & Other Fields: Used as a UV stabilizer in plastic products, coatings, and textiles to prevent material aging and degradation caused by UV radiation. It is also used as an analytical reference standard in chemical analysis and quality control processes for sunscreen products.
Molecular Formula & Structure
- Molecular Formula: C??H??N?O?
- Molecular Weight: 627.8 g/mol
- IUPAC Name: 2,2'-(6-(4-Methoxyphenyl)-1,3,5-triazine-2,4-diyl)bis{5-((2-ethylhexyl)oxy)phenol}
- Synonyms: Bemotrizinol; Tinosorb S; Escalol S; UV-627;
- EINECS Number: 425-950-7
- InChIKey: XVAMCHGMPYWHNL-UHFFFAOYSA-N
- SMILES Code: COc1ccc(-c2nc(-c3ccc(OCC(CC)CCCC)c(O)c3)nc(-c3ccc(OCC(CC)CCCC)c(O)c3)n2)cc1
- Chemical Structure: A 1,3,5-triazine ring as the core, substituted with a 4-methoxyphenyl group at the 6-position and two 5-((2-ethylhexyl)oxy)-2-hydroxyphenyl groups at the 2 and 4 positions. This structure endows it with excellent UV absorption capacity and photostability.
Physical & Chemical Properties
- Appearance: Light yellow to yellow crystalline powder, odorless, no visible impurities.
- Melting Point: 80–85 °C; Density: 1.109±0.06 g/cm3 (25 °C, predicted)
- Solubility: Insoluble in water; soluble in cosmetic oils; slightly soluble in chloroform and ethyl acetate; 10g is soluble in 30g of alkyl benzoate.
- Boiling Point: >400 °C; UV Absorption: λmax (UVB) 310 nm, λmax (UVA) 340–345 nm, absorption range 280–400 nm
- Stability: Excellent photostability; stable under normal temperature and dry conditions; incompatible with strong oxidants and strong bases; avoid light, moisture and high temperature.
- Toxicity: Low toxicity; mild irritation to skin and eyes; non-toxic by oral ingestion; safe for use in cosmetics at specified concentrations.
- pKa: 8.08±0.40 (predicted); XLogP3: 10.4
Synthesis & Storage
- Synthesis: Typically prepared by the reaction of 2,4-dichloro-6-(4-methoxyphenyl)-1,3,5-triazine with 3-ethylhexyloxyphenol in the presence of a catalyst (such as aluminum trichloride), followed by quenching, water washing, desolvation, recrystallization and other purification steps. Industrial synthesis yield is usually 78–87% with high product purity.
- Storage: Sealed in airtight, light-proof containers; stored in a cool, dry and well-ventilated place at 2–8 °C (long-term storage); avoid light, moisture, high temperature and strong oxidants; shelf life is 2–3 years under proper storage conditions.
- Safety: Operate in a well-ventilated environment; wear professional protective gear (gloves, goggles) to avoid direct contact with skin and eyes; wash thoroughly with soap and water after handling; dispose of waste in accordance with chemical waste regulations.
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