Octabenzone

2-羟基-4-正辛氧基二苯甲酮

Also known as: 2-Hydroxy-4-(octyloxy)benzophenone, 2-Hydroxy-4-n-octoxybenzophenone, 2-Hydroxy-4-n-octyloxybenzophenone, 2-Benzoyl-5-(octyloxy)phenol, (2-Hydroxy-4-(octyloxy)phenyl)(phenyl)methanone, [2-Hydroxy-4-(octyloxy)phenyl]phenylmethanone, UV-531, BP-12, Chimassorb 81, Cyasorb UV 531, Uvinul 3008, Spectra-Sorb UV 531

Octabenzone (CAS 1843-05-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C21H26O3 and a molecular weight of 326.429 g/mol. It is also known as 2-Hydroxy-4-(octyloxy)benzophenone, 2-Hydroxy-4-n-octoxybenzophenone and 2-Hydroxy-4-n-octyloxybenzophenone. Key properties include a melting point of 47-49 °C(lit.), a boiling point of 457.9±30.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 155.1±18.1 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1843-05-6

Jingsj CID

J-19061-7

Molecular Formula

C₂₁H₂₆O₃

Chinese Name

2-羟基-4-正辛氧基二苯甲酮

Molecular Weight

326.429 g/mol

Category

Ketones

Last updated

8/21/2026