The RRR-form of natural vitamin E with the highest biological activity of all vitamin E forms. Worldbestve supplies d-alpha-tocopherol from 1000 to 1490 IU/g, d-alpha content up to 96.0%, FSSC 22000 and Non-GMO IP certified.
CAS: 59-02-9 | RRR-form | Specific rotation ≥ +24° | Light yellow to brownish-red, clear oily liquid
| Property | Worldbestve Specification |
|---|---|
| CAS Number | 59-02-9 |
| Form | Clear oily liquid (oil) / powder (500 IU) |
| Grades (IU/g) | 1000, 1043 (70%), 1100, 1300, 1340 (90%), 1350, 1430 (96%), 1490 |
| d-alpha Content | 67.15% – 96.0% |
| Specific Rotation | ≥ +24° (natural identification) |
| d-alpha in Tocopherols (by weight) | ≥ 95% |
| PAH4 / Benzo[a]pyrene | ≤ 10 ppb / ≤ 2.0 ppb (EU compliant) |
| Heavy Metals (Pb / As / Cd / Hg) | ≤ 2 / 2 / 1 / 0.1 mg/kg |
| Standards | GB 1886.233-2016, FCC, USP, EP |
| Certifications | FSSC 22000, ISO 22000, Non-GMO IP, Kosher, Halal |
| Shelf Life | 24 months (nitrogen-blanketed, cool & dry) |
| MOQ | 10 kg (samples & trial orders supported) |
d-alpha-tocopherol oil grades and corresponding d-alpha content.
| Grade | IU/g | d-α Content | Packaging |
|---|---|---|---|
| WB-1000 | 1000 | ≥ 67.15% | 10/20/50/190/200 kg; 900/950 kg IBC |
| WB-1043 (70%) | 1043 | ≥ 70.0% | 10/20/50/190/200 kg; 900/950 kg IBC |
| WB-1100 | 1100 | ≥ 73.83% | 10/20/50/190/200 kg; 900/950 kg IBC |
| WB-1300 | 1300 | ≥ 87.25% | 10/20/50/190/200 kg; 900/950 kg IBC |
| WB-1340 (90%) | 1340 | ≥ 90.0% | 10/20/50/190/200 kg; 900/950 kg IBC |
| WB-1350 | 1350 | ≥ 90.6% | 10/20/50/190/200 kg; 900/950 kg IBC |
| WB-1430 (96%) | 1430 | ≥ 96.0% | 10/20/50/190/200 kg; 900/950 kg IBC |
| WB-Powder 500 IU | 500 | ≥ 33.5% (powder) | 25 kg fiber drum (foil bag) |
The form, the activity, and how to verify it.
Natural vitamin E occurs in eight forms — four tocopherols (α, β, γ, δ) and four tocotrienols. Among them, d-alpha-tocopherol (RRR-form) carries the highest vitamin E biological activity and is the reference standard against which all others are measured.
Natural d-alpha-tocopherol is about 3.5× more bioavailable than synthetic dl-alpha-tocopherol (all-rac form). The single most reliable laboratory check for "natural" is specific rotation ≥ +24° — synthetic material sits near 0°. A Certificate of Analysis without this value, or with a near-zero value, is not natural d-alpha.
Worldbestve extracts d-alpha-tocopherol from vegetable-oil deodorizer distillate using molecular distillation, with a proprietary PAHs removal step that keeps polycyclic aromatic hydrocarbons below EU limits. The company's natural d-alpha production capacity ranks first in China.
D-Alpha-Tocopherol is used wherever potency, stability, and a natural claim matter.
| Application | Role | Notes |
|---|---|---|
| Food fortification | Nutrient & antioxidant | Add to fat/oil phase; 0.01%–0.05% typical |
| Nutraceuticals / supplements | Active vitamin E | Softgels, tablets, powders; 1490 IU/g for high-potency |
| Cosmetics & personal care | Antioxidant & skin active | Protects oils from rancidity; clean-label claim |
| Pharmaceuticals | Active / stabilizer | Meets USP / EP; low impurity profile |
| Animal nutrition | Vitamin E source | Supports immunity & feed stability |
Natural d-alpha-tocopherol is the RRR-form extracted from vegetable oils and has the highest biological activity of any vitamin E form. It shows a specific rotation of at least +24 degrees and is about 3.5 times more bioavailable than synthetic dl-alpha-tocopherol (all-rac form), which sits near 0 degrees rotation. For a natural claim, the COA must show specific rotation ≥ +24°.
Worldbestve supplies natural d-alpha-tocopherol oil in grades 1000, 1043 (70%), 1100, 1300, 1340 (90%), 1350, 1430 (96%) and 1490 IU/g, corresponding to d-alpha content from 67.15% up to 96.0%, plus a 500 IU d-alpha powder. All grades are FSSC 22000 and Non-GMO IP certified.
For a genuine natural claim, d-alpha-tocopherol must show a specific rotation of at least +24 degrees (GB 1886.233-2016 / USP method). Synthetic dl-alpha-tocopherol is near 0 degrees. A COA without this value, or with a near-zero value, means the material is not natural d-alpha.
Yes. Worldbestve d-alpha-tocopherol is Non-GMO IP (identity preserved). The site is certified to FSSC 22000 and ISO 22000, and the product also meets Kosher, Halal, ISO 9001 and ISO 14001 requirements. PAHs levels comply with EU limits (PAH4 ≤ 10 ppb, benzo[a]pyrene ≤ 2.0 ppb).
Minimum order quantity is 10 kg, with samples and small trial orders supported. Shelf life is 24 months when stored in tightly closed containers, cool and dry, protected from heat, light and oxygen (nitrogen-blanketed packaging is used).
Tell us your target grade and application — we reply with specifications, COA sample, and lead time. MOQ from 10 kg.
Get a Quote →