Ingredient Dictionary

DIHYDROMYRCENE

Dihydromyrcene is an organic molecular entity.

Definition

Dihydromyrcene is an organic molecular entity.

Source: PubChem

US FDA substance register · UNII LS5LA2BUG0 · registered name DIHYDROMYRCENE · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Gives the product a scentPERFUMING

Safety & regulatory references

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

Source: Korea toxic substances GHS register (NIER)

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

Names & identifiers

DIHYDROMYRCENEINCI1,6-Octadiene, 3,7-dimethyl-Synonym

CAS No.chemical registry number: 2436-90-0
EC No.EU chemical inventory number: 219-433-3
DTXSIDUS EPA chemical ID: DTXSID8029234
DTXCIDUS EPA compound ID: DTXCID809234

IUPAC: 3,7-Dimethylocta-1,6-diene
Molecular formula: C10H18
Molecular weight: 138.254 g/mol

Measured properties

Appearance: liquid
Melting/freezing point: -66.11 ℃(est.)
Initial boiling point and range: 154~159 ℃ (OECD Guideline 103)
Flash point: 37 ℃(ISO No., other: ASTM D 3828-97: Small Scale Closed Tester)
Vapour pressure: 409 ㎩(at 20 °C)
Water solubility: 1.87 ㎎/ℓ(at 25 °C)
Vapour density: 0.762 ( OECD Guideline 109at 20 °C)
n-Octanol/water partition coefficient (Kow): 4.88 (est.)
Auto-ignition temperature: 280 ℃(EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases)))
Molecular weight: 138.28

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: KOSHA safety data sheets (Korea)

What products actually use it for

What the 10 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.

Fragrance7
Deodorizer2
Intermediate1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

1 skin studies and 1 eye studies are on record.

Classed as highly irritating1

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

High Frequency of Sensitization
skin sensitisation: in vivo (LLNA) · Screening · according to OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Moderate or Mild Irritation
eye irritation: in vitro / ex vivo · Screening · other guideline: OECD guideline N 437: Bovine Corneal Opacity and Permeability test method for identifying ocular corrosives and severe irritants according to