Hexadecyltrimethylammonium hydroxide

Also known as: Cetyltrimethylammonium hydroxide, N,N,N-Trimethylhexadecan-1-aminium hydroxide, (1-Hexadecyl)trimethylammonium hydroxide, Trimethylhexadecylammonium hydroxide, Hexadecyltrimethylammonium hydroxide solution

Hexadecyltrimethylammonium hydroxide (CAS 505-86-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C19H43NO and a molecular weight of 301.55900 g/mol. Key properties include a density of 0.988 g/mL at 25 °C and a flash point of 11 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.: 505-86-2
Jingsj CID: J-1109199-9
Molecular Formula: C₁₉H₄₃NO
Molecular Weight: 301.55900 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 11/2/2026

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Physicochemical Properties

Density	0.988 g/mL at 25 °C
Flash Point	11 °C
Exact Mass	284.331177
PSA	23.06000
LogP	2.40
Refractive Index	n20/D 1.372

Customs & Trade Information

HS Code	2923900090
Summary	2923900090 other quaternary ammonium salts and hydroxides。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Hexadecyltrimethylammonium hydroxide?

The CAS number of Hexadecyltrimethylammonium hydroxide is 505-86-2.

What are the molecular formula and molecular weight of Hexadecyltrimethylammonium hydroxide?

Hexadecyltrimethylammonium hydroxide has molecular formula C19H43NO and molecular weight 301.55900 g/mol.

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

Last updated: 11/2/2026

How to cite: Jingsj. "Hexadecyltrimethylammonium hydroxide (CAS 505-86-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1109199-9 (accessed 2026-11-09).

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