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Ingredients

Ingredient Dictionary

NORDIHYDROGUAIARETIC ACID

Nordihydroguaiaretic acid is a tetrol that is butane which is substituted at positions 2 and 3 by 3,4-dihydroxybenzyl groups.

Molecular structure

How much products actually contain

No product states its amount yet.

Of the products containing it, 1 list it before the 1% line and 2 after it (usually 1% or less).

Products using this ingredient

3 of 3 confirmed · likeliest to carry enough first

Definition

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 a ferroptosis inhibitor, a geroprotector, an antioxidant and a plant metabolite. It is a lignan, a member of catechols and a tetrol.

Source: PubChem

US FDA substance register · UNII 7BO8G1BYQU · registered name MASOPROCOL · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Slows spoilage by oxygenANTIOXIDANT

Safety & regulatory references

Other restriction: ban substances that deplete the ozone layer

Source: EU CosIng ingredient list

More data — names, identifiers, properties, test records, literature

Official labels & definitions

JCIA labelling name ノルジヒドログアイアレチン酸: 本品は、次の化学式で表されるリグナン誘導体である。

Source: JCIA labelling names (Japan)

Names & identifiers

NORDIHYDROGUAIARETIC ACIDINCI노르다이하이드로구아이아레틱애씨드Korean label name (MFDS standard)1,2-Benzenediol, 4,4'-(2,3-dimethyl-1,4-butanediyl)bis-Synonymノルジヒドログアイアレチン酸Japanese labelling name
CAS No.chemical registry number
500-38-9
EC No.EU chemical inventory number
207-903-0
DTXSIDUS EPA chemical ID
DTXSID5022437
DTXCIDUS EPA compound ID
DTXCID702437
IUPAC
4,4'-(2,3-Dimethylbutane-1,4-diyl)di(benzene-1,2-diol)
Molecular formula
C18H22O4
Molecular weight
302.37 g/mol

Measured properties

Appearance
Solid, [Merck Index] White odorless powder, [Alfa Aesar MSDS] · solid
Colour
white
Melting/freezing point
185.5 ℃
Initial boiling point and range
4.640 ℃
n-Octanol/water partition coefficient (Kow)
4.64
Molecular weight
302.40

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 3 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

  • Antioxidant3

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

2 skin studies and 0 eye studies are on record.

Classed as moderate2

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 2 studies
  • SkinSens1
    Skin Sensitization · QSAR Predicted
  • SkinIrr2
    Skin Irritation · QSAR Predicted

Source: US EPA CompTox dashboard

Related literature

Linked databases 18