Ingredient Dictionary

ACETALDEHYDE

Acetaldehyde can cause cancer according to an independent committee of scientific and health experts.

How much products actually contain

No product states its amount yet.

Of the products containing it, 0 list it before the 1% line and 1 after it (usually 1% or less).

Products using this ingredient

1 of 1 confirmed · likeliest to carry enough first

WAKEMAKENail Care 8-Type Pick & Mix

Definition

Acetaldehyde can cause cancer according to an independent committee of scientific and health experts.

Source: PubChem

US FDA substance register · UNII GO1N1ZPR3B · registered name Acetaldehyde · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Acetaldehyde is the aldehyde that conforms to the formula:

Cosmetic roles

Listed as a fragrance-composition material (not a claim that it adds scent)FRAGRANCE

Safety & regulatory references

Banned: ASEAN · European Union · United Kingdom

Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · UK cosmetics regulations (OPSS)

Korea’s toxic-substance GHS classification: Danger · H350 (category 1B) · H341 (category 2) · H319 (category 2) · +3 more

Source: Korea toxic substances GHS register (NIER)

EU Cosmetics Regulation, Annex II (prohibited substances), entry 1391

Source: EU prohibited substances (Annex II)

Restriction II/1391 · SCCS opinion: Opinion concerning Acetaldehyde

Source: EU CosIng ingredient list

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

Names & identifiers

ACETALDEHYDEINCI아세트알데하이드Korean label name (MFDS standard)

CAS No.chemical registry number: 75-07-0
EC No.EU chemical inventory number: 200-836-8
DTXSIDUS EPA chemical ID: DTXSID5039224
DTXCIDUS EPA compound ID: DTXCID202

IUPAC: Acetaldehyde
Molecular formula: C2H4O
Molecular weight: 44.053 g/mol

Measured properties

Appearance: Acetaldehyde appears as a clear colorless liquid with a pungent choking odor. Flash point -36 °F. Boiling point 69 °F. Density 6.5 lb / gal. Vapors are heaver than air and irritate the mucous membranes and especially the eyes. Used to make other chemicals. · Liquid
Odour: Pungent, fruity odor · Pungent, suffocating odor that is somewhat fruity and quite pleasant in dilute concentrations.
Boiling point: 70 °F at 760 mmHg (NTP, 1992) · 20.8 °C
Melting point: -190.3 °F (NTP, 1992) · -123.4 °C
Solubility: 0.1 to 1.0 mg/mL at 66 °F (NTP, 1992) · Miscible with water /1X10+6 mg/L at 25 °C/
Density: 0.78 at 68 °F (USCG, 1999) - Less dense than water, will float · 0.7834 g/cu cm at 18 °C
Colour: colourless
Melting/freezing point: -123.5 ℃
Initial boiling point and range: 20.2 ℃
Flash point: -38 ℃
Upper/lower flammability or explosive limits: 60 / 4 %
Vapour pressure: 902 ㎜Hg(25℃)
Water solubility: 100 g/100㎖(25℃)
Relative density: 0.78
n-Octanol/water partition coefficient (Kow): -0.34
Auto-ignition temperature: 185 ℃
Viscosity: 253000 P(g/㎝·s)(20 ℃)
Molecular weight: 44.05

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 46 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.

Fragrance20
No specific technical function8
Binder4
Intermediate3
Flavouring and nutrient2
Solvent2
Corrosion inhibitor2
Processing aids not otherwise specified1

4 other uses

Deodorizer1
Monomers1
Softener and conditioner1
Degradant/impurity (EPA)1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

7 skin studies and 5 eye studies are on record.

Classed as moderate2Classed as low3

The studies disagree (the most common conclusion covers 40%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 12 studies

Skin sensitization - Category 1B
Skin Sensitization · Screening
Category 1
Skin Sensitization · Screening
Not classified
Skin Irritation · Screening
Not likely to be sensitizing
skin sensitisation: in vivo (non-LLNA) · Screening · according to OECD Guideline 406 (Skin Sensitisation) and 96/54/EEC,B6
Moderate or Mild Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Moderate or Mild Irritation
skin irritation: in vivo · Screening · other guideline: 19 CFR, Chapter I, Sec 173.40 according to
Studies Indicate No Significant Irritation
skin irritation: in vivo · Screening · OECD Guideline 404 (Acute Dermal Irritation / Corrosion) according to
Category 6.4A (Category 2A)
Eye Irritation · Read Across
Eye Irrit. 2
Eye Irritation · Authoritative
Serious eye damage/eye irritation - Category 2
Eye Irritation · Screening
Eye Irrit. 2
Eye Irritation · Screening
Category 2A
Eye Irritation · Screening