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α-phellandrene

Also known as: (3R,5R)-(+)-2,6-DIMETHYL-3,5-HEPTANEDIOL, (±)-a-Phellandrene, 1,3-Cyclohexadiene, 2-methyl-5-(1-methylethyl)-, 1-ISOPROPYL-4-METHYL-2,4-CYCLOHEXADIENE, 2-Methyl-5-isopropyl-3-isonicotinoylhydrazono-bicyclo[3.1.0]hexan, 2-methyl-5-(propan-2-yl)cyclohexa-1,3-diene, 2-methyl-5-isopropylcyclohexa-1,3-diene, 3-Thujylidenehydrazide of isonicotinic acid, 5-ISOPROPYL-2-METHYL-1,3-CYCLOHEXADIENE, 5-Isopropyl-2-methyl-1,3-cyclohexadiene, 5-Isopropyl-2-methylcyclohexa-1,3-diene, A-PHELLANDRENE, ALPHA-PHELLANDRENE, ALPHA-PHELLANDRENE FCC, EINECS 202-792-5, FEMA 2856, ISONICOTINIC ACID,3-THUJYLIDENEHYDRAZIDE, MFCD00040419, P-MENTHA-1,5-DIENE 70%, Phellandrene

α-phellandrene (CAS 99-83-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H16 and a molecular weight of 136.23 g/mol. Key properties include a boiling point of 171.5±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 43.7±13.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
99-83-2
Jingsj CID
J-40155-5
Molecular Formula
C10H16
Molecular Weight
136.23 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point171.5±0.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point43.7±13.0 °C
Exact Mass136.125198
LogP4.43
Vapor Pressure1.9±0.1 mmHg at 25°C
Refractive Index1.469

GHS Safety & Compliance

Flammable / Irritant / Health HazardSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H334 — May cause allergy or asthma symptoms if inhaled
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Zhang JH, et al. Anti-fungal activity, mechanism studies on α-Phellandrene and Nonanal against Penicillium cyclopium. Bot Stud. 2017 Dec;58(1):13.

Customs & Trade Information

HS Code2902199090
Summary2902199090 other cyclanes, cyclenes and cyclotherpenes。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of α-phellandrene?

The CAS number of α-phellandrene is 99-83-2.

What are the molecular formula and molecular weight of α-phellandrene?

α-phellandrene has molecular formula C10H16 and molecular weight 136.23 g/mol.

Is α-phellandrene hazardous?

α-phellandrene has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H315 — Causes skin irritation.

What are the upstream and downstream products of α-phellandrene?

For α-phellandrene, Downstream Products: 3-Methylbut-1-ene, alpha-Terpinene, p-cymene.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "α-phellandrene (CAS 99-83-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40155-5 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.