Agent Name

alpha-Pinene

CAS Number

80-56-8

Formula

C10-H16

Major Category

Biological Agents

Synonyms

2,6,6-Trimethylbicyclo(3.1.1)-2-hept-2-ene; 2,6,6-Trimethylbicyclo(3.1.1)hept-2-ene; 2-Pinene; 4,6,6-Trimethylbicyklo(3,1,1)hept-3-en [Czech]; Acintene A; Bicyclo(3.1.1)hept-2-ene, 2,6,6-trimethyl; Monoterpenes; PINENE, ALPHA; Pinene isomer; alpha-Pinene (natural); [ChemIDplus] UN2368

Category

Terpenes

Description

Colorless liquid with an odor of turpentine; [HSDB]

Sources/Uses

Used to make camphor, insecticides, solvents, plasticizers, perfume bases, synthetic pine oil, flavorings, geraniol, terpineol, terpene esters and ethers, lube oil additives, camphene, terpin hydrate, and toxaphene; Also used as an odorant for synthetic resins and as a solvent for protective coatings, polishes, and waxes; [HSDB]

Comments

"Turpentine and the monoterpenes (alpha-pinene, beta-pinene, 3-carene) are skin and mucous membrane irritants, and in high concentrations, are central nervous system (CNS) depressants." A dermal sensitizer; [ACGIH] A skin, eye, and mucous membrane irritant; Toxic by ingestion with effects similar to turpentine poisoning; Mean lethal oral dose for adult = 4-6 oz; Potential health effects include CNS depression and kidney damage; [HSDB] Harmful by inhalation, ingestion, and skin absorption; [CAMEO] An irritant; May cause skin sensitization; [MSDSonline] See "Turpentine." See "TERPENES."

Exposure Assessment
Skin Designation (ACGIH)

No

TLV (ACGIH)

20 ppm

Vapor Pressure

4.75 mm Hg

Lethal Concentration

LCLo (rat) = 0.625 mg/m3

Explanatory Notes

Flash point = 33 deg C; [HSDB]

Flammability (NFPA)

3: May ignite at ambient temperature

Adverse Effects
Skin Sensitizer

Yes

Neurotoxin

CNS Solvent Syndrome

ACGIH Carcinogen

Not Classifiable

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Diseases

Occupational diseases associated with exposure to this agent:

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