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Free lookupCAS 138-86-3

1-Methyl-4-Prop-1-En-2-Ylcyclohexene

CAS 138-86-3 · PubChem CID 22311 · C10H16 · 136.23 g/mol

Also called 1-methyl-4-prop-1-en-2-ylcyclohexene, RefChem:1055817, LIMONENE, Dipentene, Cinene.

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Opens the builder with 1-Methyl-4-Prop-1-En-2-Ylcyclohexene loaded
as component 1 at 100%.

01GHS classification
GHS pictogram: Flammable
Flammable
GHS pictogram: Irritant
Irritant
GHS pictogram: Environmental Hazard
Environmental Hazard

Precautionary statement codes

P210, P233, P240, P241, P242, P243, P261, P264, P272, P273, P280, P302+P352, P303+P361+P353, P321, P332+P317, P333+P317, P362+P364, P370+P378, P391, P403+P235, and P501

Regulation (EC) No 1272/2008 of the European Parliament and of the Councilfetched 2026-08-28

H226Flammable liquid and vapor
H317May cause an allergic skin reaction
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
02Physical and chemical properties
Appearance

Dipentene appears as a colorless liquid with an odor of lemon. Flash point 113 °F. Density about 7.2 lb /gal and insoluble in water. Hence floats on water. Vapors heavier than air. Used as a solvent for rosin, waxes, rubber; as a dispersing agent for oils, resins, paints, lacquers, varnishes, and in floor waxes and furniture polishes.

CAMEO Chemicalsfetched 2026-08-28

Odour

Pleasant lemon-like

Hazardous Substances Data Bank (HSDB)fetched 2026-08-28

Melting point

-95.5 °C

Hazardous Substances Data Bank (HSDB)fetched 2026-08-28

Boiling point

Colorless liquid; lemon-like odor. Specific gravity: 0.857 at 15.5 °C/15.5 °C; BP: 175-176 °C; Refractive index: 1.473 at 20 °C. Miscible with alcohol; insoluble in water /Limonene, inactive/

Hazardous Substances Data Bank (HSDB)fetched 2026-08-28

Flash point

113 °F (45 °C) (Close cup)

Hazardous Substances Data Bank (HSDB)fetched 2026-08-28

Auto-ignition temperature

458 °F (237 °C)

Hazardous Substances Data Bank (HSDB)fetched 2026-08-28

Flammable limits

no value printed

unsourced — inference candidate

Vapour pressure

no value printed

unsourced — inference candidate

Relative density

no value printed

unsourced — inference candidate

Solubility in water

no value printed

unsourced — inference candidate

Partition coefficient, log Kow

no value printed

unsourced — inference candidate

Viscosity

no value printed

unsourced — inference candidate

03Toxicological information

No published acute toxicity value was found for this substance in the sources we read. On a document, Section 11 would print unsourced — inference candidate rather than an estimate.

This page is the evidence. The document is the deliverable.

Everything above is free and stays free. For $5 the same sourced values are assembled into a 16-section safety data sheet and a print-ready GHS label carrying your company details in Section 1.

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What we read

Hazardous Substances Data Bank (HSDB), Regulation (EC) No 1272/2008 of the European Parliament and of the Council, CAMEO Chemicals.

10 sourced records for this substance are in the ledger. Values dated more than 30 days ago are re-fetched on the next document.