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beta-Tocopherol

Also known as: 5,8-Dimethyltocol, Cumotocopherol, Neotocopherol, p-Xylotocopherol, rac-beta-Tocopherol, rac-β-Tocopherol, β-Tocopherol (Racemic Mixture), (2R)-2,5,8-Trimethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-6-chromanol, (2R)-2,5,8-trimethyl-2-(4,8,12-trimethyltridecyl)chroman-6-ol, 3,4-dihydro-2,5,8-trimethyl-2-(4,8,12-trimethyltridecyl)-2H-benzopyran-6-ol, Tocopherol,rac-b

beta-Tocopherol (CAS 148-03-8) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C28H48O2 and a molecular weight of 416.680 g/mol. Key properties include a melting point of <25℃, a boiling point of 516.3±49.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 204.7±24.1 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H304 and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
148-03-8
Jingsj CID
J-1993187-4
Molecular Formula
C28H48O2
Molecular Weight
416.680 g/mol
Category
Alcohols
Last updated
11/3/2026
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Physicochemical Properties

Melting Point<25℃
Boiling Point516.3±49.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point204.7±24.1 °C
Exact Mass416.365417
PSA29.46000
LogP11.44
Vapor Pressure0.0±1.4 mmHg at 25°C
Refractive Index1.495
Storage Conditions2-8℃

GHS Safety & Compliance

Flammable / Irritant / Health Hazard / Environmental HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H304
  • H315 — Causes skin irritation
  • H336 — May cause drowsiness or dizziness
  • H373 — May cause damage to organs through prolonged exposure
  • H411 — Toxic to aquatic life with long lasting effects

Activity & Biological Data

TargetHuman Endogenous Metabolite
Additional Information[1]. F. Bergel, et al. Studies on vitamin E. Part III. Observations on the structure of α- and β-tocopherol.

Frequently Asked Questions

What is the CAS number of beta-Tocopherol?

The CAS number of beta-Tocopherol is 148-03-8.

What are the molecular formula and molecular weight of beta-Tocopherol?

beta-Tocopherol has molecular formula C28H48O2 and molecular weight 416.680 g/mol.

Is beta-Tocopherol hazardous?

beta-Tocopherol has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H304; H315 — Causes skin irritation.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "beta-Tocopherol (CAS 148-03-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993187-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.