Nordihydroguaiaretic acid
- CAS No.
- 500-38-9
- Chemical Name:
- Nordihydroguaiaretic acid
- Synonyms
- NDGA;ACTINEX;NORDIHYDROGUAIRETIC ACID;NSC 4291;TIMTEC-BB SBB005930;LABOTEST-BB LT00233087;NDGA, LARREA DIVARICATA;nordihydroguaiareticaci;dihydronorguaiareticacid;dihydro-norguaiareticaci
- CBNumber:
- CB5755745
- Molecular Formula:
- C18H22O4
- Molecular Weight:
- 302.36
- MDL Number:
- MFCD00002206
- MOL File:
- 500-38-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 184-186 °C (lit.) |
|---|---|
| Boiling point | 363.4°C (rough estimate) |
| Density | 1.0772 (rough estimate) |
| refractive index | 1.4230 (estimate) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Powder |
| pka | 9.56±0.10(Predicted) |
| color | White to off-white |
| biological source | Larrea divaricata (creosote bush) |
| Water Solubility | slightly soluble |
| Merck | 14,6693 |
| BRN | 2056825 |
| Stability | Stable. Incompatible with oxidizing agents. |
| Cosmetics Ingredients Functions | ANTIOXIDANT |
| InChI | 1S/C18H22O4/c1-11(7-13-3-5-15(19)17(21)9-13)12(2)8-14-4-6-16(20)18(22)10-14/h3-6,9-12,19-22H,7-8H2,1-2H3 |
| InChIKey | HCZKYJDFEPMADG-UHFFFAOYSA-N |
| SMILES | CC(Cc1ccc(O)c(O)c1)C(C)Cc2ccc(O)c(O)c2 |
| LogP | 4.640 (est) |
| Substances Added to Food (formerly EAFUS) | NORDIHYDROGUAIARETIC ACID--PROHIBITED WITH EXCEPTIONS |
| FDA 21 CFR | 175.300; 177.1010; 181.24 |
| CAS DataBase Reference | 500-38-9(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 7PZ73W4ZNR |
| NCI Dictionary of Cancer Terms | Actinex; NDGA; nordihydroguaiaretic acid |
| NCI Drug Dictionary | Actinex |
| NIST Chemistry Reference | Pyrocatechol, 4,4'-(2,3-dimethyltetramethylene)di-(500-38-9) |
| EPA Substance Registry System | Nordihydroguaiaretic acid (500-38-9) |
| UNSPSC Code | 41116107 |
| NACRES | NA.77 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P270-P301+P312-P302+P352-P305+P351+P338 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22-36/37/38 | |||||||||
| Safety Statements | 26-36/37-37/39-24/25-22 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | UX1750000 | |||||||||
| HS Code | 29072990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
Nordihydroguaiaretic acid price More Price(78)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 74540 | Nordihydroguaiaretic acid ≥97.0% (HPLC) | 500-38-9 | 1g | $108 | 2026-04-30 | Buy |
| Sigma-Aldrich | PHR3509 | Nordihydroguaiaretic Acid certified reference material, pharmaceutical secondary standard | 500-38-9 | 500 mg | $469 | 2026-04-30 | Buy |
| Sigma-Aldrich | 479975 | NDGA | 500-38-9 | 250mg | $98.6 | 2026-04-30 | Buy |
| TCI Chemical | D0800 | Nordihydroguaiaretic Acid >97.0%(HPLC) | 500-38-9 | 1g | $126 | 2026-04-30 | Buy |
| TCI Chemical | D0800 | Nordihydroguaiaretic Acid >97.0%(HPLC) | 500-38-9 | 5g | $413 | 2026-04-30 | Buy |
Nordihydroguaiaretic acid Chemical Properties, Uses, Production
Description
Nordihydroguaiaretic acid (NDGA) is a grayish-white crystalline compound that was widely used as an antioxidant in animal fats in the 1950s and 1960s. It possesses phenolic properties similar to gallates, including their advantages and disadvantages. Besides the isolation of natural material (resinous exudate of creosote bush), NDGA has also been chemically synthesized. As the result of unfavorable toxicological findings, NDGA is prohibited from use in the US. More specifically, NDGA is a potent lipoxygenase inhibitor which interferes with arachidonic acid metabolism. The compound also inhibits formyltetrahydrofolate synthetase, carbox- ylesterase,and,to a lesser extent, cyclooxygenase.
Chemical Properties
Nordihydroguaiaretic acid is a white to light yellow crystalline powder. Melting range 183～185℃. Insoluble in water. Slightly soluble in hot water. Soluble in alcohol, ether, glycerol, propylene glycol. About 0.5% is dissolved in oil. It has good antioxidant effect and is also effective against mildew. It has a synergistic effect when used in combination with citric acid and ascorbic acid.
Uses
Nordihydroguaiaretic acid is used in the treatment of multiple diseases, including cardiovascular diseases, neurological disorders and cancers. It is also used as an antioxidant.
Definition
ChEBI: Nordihydroguaiaretic acid is a tetrol that is butane which is substituted at positions 2 and 3 by 3,4-dihydroxybenzyl groups. Masoprocol, the meso-form found in the leaves of the creosote bush (Larrea divaricata), is a potent lipoxygenase inhibitor. It has a role as an antioxidant, a plant metabolite, a ferroptosis inhibitor and a geroprotector. It is a member of catechols, a tetrol and a lignan.
Application
Nordihydroguaiaretic acid (NDGA, 500-38-9) is an antioxidant that has poor solubility and shows evidence of discoloration in the presence of metal salts. It is used to a limited extent to retard rancidity. NDGA is a broad bean lipoxygenase inhibitor that polyphenol-bearing o-dihydroxy (catechol) structure. The oxidation product from Resveratrol (R150000) showed a high inhibitory activity, w hereas Resveratrol itself had no activity and its oxidation efficiency was low.
Preparation
Nordihydroguaiaretic acid is obtained by hydrodemethylation of dimethyl ether of guaiacolinic acid, a component of guaiac resin. It is also produced from desert plant, creosote bush (Larrea divaricata Cav. Or Corillea tridentate), which can be widely found in the border zone of southern of USA and northern of Mexico.
benefits
Nordihydroguaiaretic acid is a kind of antioxidant compound presented in the creosoten bush. It is a potent in vitro scavenger of many kind of oxidants such as peroxynitrite, singlet oxygen, hydroxyl radical, superoxide anion and hypochlorous acid. Studies have shown that it has various physiological effects. It can also protect hippocampal neurons against amyloid β-peptide toxicity, and attenuates free radical and calcium accumulation. Rat study has shown that it can block the synaptic component of long-term potentiation and the associated increases in release of glutamate and arachidonate. Two most exciting results are that: (1) it has the potential to increase lifespan of animals; (2) it can suppress growth of breast cancer cells through inhibiting the IGF-1 and c-erbB2/HER/NEU receptors.
General Description
Nordihydroguaiaretic acid (NDGA) is used as an powerful antioxidant and potent scavenger of reactive oxygen species (ROS). NDGA is a phenolic lignan obtained from Larrea tridentata, that has been used in traditional medicine for the treatment of numerous diseases such as cancer, renal, cardiovascular, immunological, and neurological disorders, and even aging.
Hazard
Use in foods prohibited by FDA.
Biochem/physiol Actions
Lipoxygenase inhibitor; polyphenol-bearing o-dihydroxy (catechol) structure.
Safety Profile
Moderately toxic by intraperitoneal route. An antioxidant food additive. When heated to decomposition it emits acrid smoke and irritating fumes.
Purification Methods
Crystallise the acid from dilute acetic acid. [Beilstein 6 IV 7771.]
References
Floriano-Sánchez, E, et al. "Nordihydroguaiaretic acid is a potent in vitro scavenger of peroxynitrite, singlet oxygen, hydroxyl radical, superoxide anion and hypochlorous acid and prevents in vivo ozone-induced tyrosine nitration in lungs." Free Radical Research 40.5(2006):523.
Goodman, Yadong, et al. "Nordihydroguaiaretic acid protects hippocampal neurons against amyloid β-peptide toxicity, and attenuates free radical and calcium accumulation." Brain Research 654.1(1994):171.
Lynch, M. A., M. L. Errington, and T. V. Bliss. "Nordihydroguaiaretic acid blocks the synaptic component of long-term potentiation and the associated increases in release of glutamate and arachidonate: an in vivo study in the dentate gyrus of the rat." Neuroscience 30.3(1989):693-701.
Strong, Randy, et al. "Nordihydroguaiaretic acid and aspirin increase lifespan of genetically heterogeneous male mice." Aging Cell 7.5(2008):641-650.
Youngren, Jack F., et al. "Nordihydroguaiaretic Acid (NDGA) Inhibits the IGF-1 and c-erbB2/HER2/neu Receptors and Suppresses Growth in Breast Cancer Cells." Breast Cancer Research & Treatment 94.1(2005):37-46.
Nordihydroguaiaretic acid Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Wuhan Topule | +86-02787215551 19945035818 | 2936752263@qq.com | China | 7983 | 58 |
| Xianning Shen Lan Biomedical Research and Development Co., Ltd. | 18171815831 | 1341138380@qq.com | China | 4573 | 58 |
| Guangzhou Ruidi Biotechnology Co., Ltd. | 020-82099279 18988941402 | sales@ubiochem.com | China | 10000 | 58 |
| Shanghai Boyle Chemical Co., Ltd. | 021-50182298 021-50180596 | sales@boylechem.com | China | 2202 | 55 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| LGM Pharma | 1-(800)-881-8210 | inquiries@lgmpharma.com | United States | 2110 | 70 |
View Latest Price from Nordihydroguaiaretic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-09-15 | Nordihydroguaiaretic acid
500-38-9
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-09-02 | Nordihydroguaiaretic acid
500-38-9
|
$2.00-10.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd | ||
 |
2026-07-14 | Nordihydroguaiaretic acid
500-38-9
|
$33.00-133.00 | 99.11% | 10g | TargetMol Chemicals Inc. |
-
- Nordihydroguaiaretic acid
500-38-9
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- Nordihydroguaiaretic acid
500-38-9
- $2.00-10.00
- 99%
- Henan Fengda Chemical Co., Ltd
-
- Nordihydroguaiaretic acid
500-38-9
- $33.00-133.00
- 99.11%
- TargetMol Chemicals Inc.
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