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Bemotrizinol (BEMT) — CAS 187393-00-6 | UV Filter Supplier
CAS 187393-00-6
Broad-spectrum UV-A and UV-B filter that supports photostability in multi-filter systems.
Overview
Bemotrizinol
Bemotrizinol (Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, BEMT) is an oil-soluble broad-spectrum UV filter in Sigmak’s UV portfolio (product code SIG-UV-008).
A triazine core carrying two phenol arms absorbs strongly across both UV-A and UV-B, with high molar extinction allowing efficient protection at relatively low use levels.
Product identity
- CAS Number
- 187393-00-6
- Molecular Formula
- C38H49N3O5
- Molecular Weight
- 627.81
- Appearance
- Yellow fine to coarse powder
- Purity (HPLC)
- NLT 98.5%
- Melting Point
- 80–85 °C
- Moisture (KF)
- NMT 0.50%
- E1% (Isopropanol, 342 nm)
- NLT 790
- Sulphated Ash
- NMT 1%
Cosmetic / Formulation Applications
- Broad-spectrum UV protection
- High-performance sunscreens
- Anti-aging and daily UV protection formulations
- Photostabilizer in multi-filter sunscreen systems
- Premium personal care and cosmetic formulations
Typical formulation considerations
- High extinction coefficient (E1% NLT 790 at 342 nm) allows efficient broad-spectrum protection at relatively low use levels.
- Oil-soluble powder; incorporated into the oil phase.
- Preservative-free as supplied.
Packaging & documentation
- Packaging
- 25 kg corrugated boxes
- Shelf life
- 36 months
- Storage
- Store at ambient temperature in a dry place, away from direct sunlight.
- Documentation
- CoA / SDS / TDS available on request.
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