3-n-Butylphthalide

Also known as: 1(3H)-Isobenzofuranone, 3-butyl-, 3-Butyl-2-benzofuran-1(3H)-one, 3-Butyl-phthalide, 3-Butylisobenzofuran-1(3H)-one, 3-Butylphthalide, 3-N-Butylphthalide, Butylphathlide, Butylphthalide, UNII:822Q956KGM

3-n-Butylphthalide (CAS 6066-49-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H14O2 and a molecular weight of 190.238 g/mol. Key properties include a boiling point of 312.8±31.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 128.3±22.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6066-49-5
Jingsj CID: J-1975392-6
Molecular Formula: C₁₂H₁₄O₂
Molecular Weight: 190.238 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	312.8±31.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	128.3±22.2 °C
Exact Mass	190.099380
PSA	26.30000
LogP	3.08
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.525

Activity & Biological Data

Additional Information	[1]. Cui LY, et al. Ninety-day administration of dl-3-n-butylphthalide for acute ischemic stroke: a randomized, double-blind trial. Chin Med J (Engl). 2013;126(18):3405-10. [2]. Zhao W, et al. 3-N-butylphthalide improves neuronal morphology after chronic cerebral ischemia. Neural Regen Res. 2014 Apr 1;9(7):719-26. [3]. Wang X, et al. Design, synthesis and biological evaluation of hydrogen sulfide releasing derivatives of 3-n-butylphthalide as potential antiplatelet and antithrombotic agents. Org Biomol Chem. 2014 Aug 21;12(31):5995-6004. [4]. Wang F, et al. Improvement of cognitive deficits in SAMP8 mice by 3-n-butylphthalide. Neurol Res. 2014 Mar;36(3):224-33.

Additional Information

[1]. Cui LY, et al. Ninety-day administration of dl-3-n-butylphthalide for acute ischemic stroke: a randomized, double-blind trial. Chin Med J (Engl). 2013;126(18):3405-10. [2]. Zhao W, et al. 3-N-butylphthalide improves neuronal morphology after chronic cerebral ischemia. Neural Regen Res. 2014 Apr 1;9(7):719-26. [3]. Wang X, et al. Design, synthesis and biological evaluation of hydrogen sulfide releasing derivatives of 3-n-butylphthalide as potential antiplatelet and antithrombotic agents. Org Biomol Chem. 2014 Aug 21;12(31):5995-6004. [4]. Wang F, et al. Improvement of cognitive deficits in SAMP8 mice by 3-n-butylphthalide. Neurol Res. 2014 Mar;36(3):224-33.

Customs & Trade Information

HS Code	2932209090
Summary	2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3-n-Butylphthalide?

The CAS number of 3-n-Butylphthalide is 6066-49-5.

What are the molecular formula and molecular weight of 3-n-Butylphthalide?

3-n-Butylphthalide has molecular formula C12H14O2 and molecular weight 190.238 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3-n-Butylphthalide (CAS 6066-49-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1975392-6 (accessed 2026-11-06).

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