Ingredient Dictionary

HYDROXYCITRONELLAL

Hydroxycitronellal is the tertiary alcohol arising from addition of water across the C=C double bond of citronellal.

How much products actually contain

No product states its amount yet.

Of the products containing it, 38 list it before the 1% line and 745 after it (usually 1% or less).

Products using this ingredient

12 of 783 confirmed · likeliest to carry enough first · See all 783

Definition

Hydroxycitronellal is the tertiary alcohol arising from addition of water across the C=C double bond of citronellal. It has a role as a fragrance and an allergen. It is functionally related to a citronellal.

Source: PubChem

US FDA substance register · UNII 8SQ0VA4YUR · registered name HYDROXYCITRONELLAL · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Gives the product a scentPERFUMING

Safety & regulatory references

Restricted: International fragrance standard (IFRA) · United Kingdom

Source: EU Cosmetics Regulation · IFRA fragrance standards · MFDS (Korea) cosmetic regulatory information · UK cosmetics regulations (OPSS)

European Union

Product Type, body parts : (a) Oral products (b) Other products
Maximum concentration in ready for use preparation : (b) 1,0 %
Other : (a) (b) The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)(g) when its concentration exceeds: — 0,001 % in leave-on products — 0,01 % in rinse-off products

Source: MFDS (Korea) cosmetic regulatory information

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex III (restricted substances), entry 72 · maximum concentration (b) 1,0 % · applies to (a) Oral products (b) Other products

Source: EU restricted substances (Annex III)

Restriction III/72

Source: EU CosIng ingredient list

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

Official labels & definitions

JCIA labelling name ヒドロキシシトロネラール: 本品は、次の化学式で表されるテルペンアルデヒドである。

Source: JCIA labelling names (Japan)

Names & identifiers

HYDROXYCITRONELLALINCI하이드록시시트로넬알Korean label name (MFDS standard)Octanal, 7-hydroxy-3,7-dimethyl-SynonymヒドロキシシトロネラールJapanese labelling name

CAS No.chemical registry number: 107-75-5
EC No.EU chemical inventory number: 203-518-7
DTXSIDUS EPA chemical ID: DTXSID6042232
DTXCIDUS EPA compound ID: DTXCID4022232

IUPAC: 7-Hydroxy-3,7-dimethyloctanal
Molecular formula: C10H20O2
Molecular weight: 172.268 g/mol

Measured properties

Appearance: Liquid, Dry Powder, CBI · Liquid, [Sigma-Aldrich MSDS]
Boiling point: 241.00 °C. @ 760.00 mm Hg · 241 °C, 94-96 °C (1 mm Hg)
Solubility: slightly · slightly soluble in water, soluble in alcohol, propylene glycol, and oils, insoluble in glycerol
Density: 0.918-0.923
n-Octanol/water partition coefficient (Kow): 1.68
Molecular weight: 172.27

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 302 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.

Fragrance295
Flavouring and nutrient5
Deodorizer1
No specific technical function1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

3 skin studies and 1 eye studies are on record.

Classed as moderate1

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 4 studies

Category 6.5B (Category 1)
Skin Sensitization · Read Across
SkinSens1
Skin Sensitization · QSAR Predicted
Sh
Skin Sensitization · Authoritative
Category 6.4A (Category 2A)
Eye Irritation · Read Across