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D-alpha Tocopheryl Acetate

Release time:2020-12-01

Product Name: D-alpha Tocopheryl Acetate

Synonyms: D-alpha-Tocopheryl acetate,98%;D-alpha-Tocopheryl acetateVitamine E-acetate;(2R)-3,4-Dihydro-2,5,7,8-tetraMethyl-2-[(4R,8R)-4,8,12-triMethyltridecyl]-2H-1-benzopyran-6-ol 6-Acetate;(2R,4'R,8'R)-α-Tocopherol Acetate;(2R,4'R,8'R)-α-Tocopheryl Acetate;(R,R,R)-α-Tocopheryl Acetate;2,5,7,8-TetraMethyl-2-(4,8,12-triMethyltridecyl)- 6-chroManol Acetate;Copherol 12250

Type: 1000IU

CAS No.: 58-95-7

Chemical Formula: C31H52O3

Molecular Weight: 472.74

EINECS NO.: 200-405-4

Chemical Structure: 

Melting Point: ~25℃(lit.)

Alpha: 3 º (c=2, in ethanol 25 ºC)

Boiling Point: 224 °C0.3 mm Hg(lit.)

Density:0.953 g/mL at 25 °C(lit.)

Refractive Index: n20/D 1.496(lit.)

Flash Point: >230 °F

Solubility: Practically insoluble in water, freely soluble in acetone, in anhydrous ethanol and in fatty oils, soluble in ethanol (96 per cent).

Water Solubility: <0.1 g/100 mL at 17 ºC

Stability: Stable. Incompatible with strong oxidizing agents.

[Physical & Chemical Data]

Color: Colorless to yellow

Odor: Nearly odorless

Appearance: Clear oily liquid

[Analytical Quality]


Chemical reaction: Positive

GC: Corresponds to RS

Acidity: ≤0.5ml

Optical rotation: ≥+24°


D-alpha tocopheryl acetate: ≥73.53%


Heavy Metals: ≤10ppm

*Arsenic: ≤3ppm

*Lead: ≤2ppm

*Mercury: ≤1ppm

* B(a)p: ≤2ppb

*PAH4: ≤10ppb


TAMC: ≤1000cfu/g

Yeast & Moulds: ≤100cfu/g

E.coli: Negative/10g

Shelf Life: 24 months in the unopened original container.

Packing & Storage: 20KG steel drum. It shall be stored at ambient temperature, dry conditions, protected from heat, light and oxygen.