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(±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid


Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level



storage condition

under inert gas


187-189 °C (lit.)

storage temp.


SMILES string




InChI key


Gene Information

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General description

(±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid (Trolox) exhibits radical scavenging and antioxidant activities.


(±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid (Trolox) has been used in 6-hydroxy-2,5,7,8-tetramethyl chromane-2-carboxylic acid equivalent antioxidant assay (TEAC) to determine the total antioxidant capacity of different fruit species.


1 mg in glass bottle
1, 5, 25 g in glass bottle
Bottomless glass bottle. Contents are inside inserted fused cone.

Legal Information

Storage Class Code

11 - Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

  1. How does the storage temperature relate to shipping conditions?

    The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.

  2. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  3. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  4. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.

  5. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

  6. What is the solubility of Product 238813, (±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid?

    Product 238813, (±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid, has been reported to be soluble in DMSO, ethanol and dimethyl formamide. The solubility in these solvents is ~20mg/ml.

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C Giulivi et al.
Archives of biochemistry and biophysics, 303(1), 152-158 (1993-05-15)
The reactivity of Trolox C, a water-soluble analog of vitamin E, toward protein radicals formed during the oxidation of metmyoglobin and the therefrom derived molecular products was examined in terms of the ability of the phenolic antioxidant to prevent specific...
Gláucia E M L Siervo et al.
Biology of reproduction, 100(1), 112-122 (2018-07-17)
Spermatogenesis and steroidogenesis are not fully established during puberty. Especially during this period, children and adolescents may be chronically sleep deprived due to early school hours and constant exposure to artificial light and interactive activities. We have previously shown that...
R Lakshmi Sundaram et al.
Journal of ethnopharmacology, 241, 111962-111962 (2019-05-24)
Spermacoce hispida (S.hispida), a potential medicinal plant has been traditionally used as an antibacterial, antieczemic, antihypertensive, antidiabetic and antihyperlipidemic agent. Although, this plant has been claimed to protect against oxidative injury and inflammatory conditions in recent studies, its cardioprotective effect...
D A Kirke et al.
Food chemistry, 221, 1104-1112 (2016-12-17)
Due to their high anti-oxidant activity, phlorotannins represent potential natural alternatives to synthetic preservatives currently used within the food industry. However, their successful integration into food products requires research into their chemical integrity, particularly when selecting appropriate storage conditions. Subsequently...
Ming Yuan Heng et al.
Food chemistry, 221, 1388-1393 (2016-12-17)
In this study, extraction of immature fruits using an environmentally friendly pressurized hot water extraction (PHWE) method was compared with the traditional reflux method. Extracts were tested for their polyphenol content using the Folin-Ciocalteu assay and for their antioxidant activity...

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