Sodium octyl sulfate

辛基硫酸钠

Also known as: EINECS 205-535-5, MFCD00007470, Octyl sulfate sodium salt, Octyl sulfate, sodium salt, Sodium n-octyl sulfate, Sulfuric acid, octyl ester, sodium salt (1:1), sodium,octyl sulfate, SOS, Sodium capryl sulfate, Octylsulfuric acid sodium salt

Sodium octyl sulfate (CAS 142-31-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H17NaO4S and a molecular weight of 232.273 g/mol. It is also known as EINECS 205-535-5, MFCD00007470 and Octyl sulfate sodium salt. Key properties include a melting point of 195 °C (dec.)(lit.), a density of 1.04 g/ml and a flash point of 93.3 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
142-31-4
Jingsj CID
J-42761-0
Molecular Formula
C8H17NaO4S
Chinese Name
辛基硫酸钠
Molecular Weight
232.273 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point195 °C (dec.)(lit.)
Density1.04 g/ml
Flash Point93.3 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Sodium octyl sulfate?

The CAS number of Sodium octyl sulfate is 142-31-4.

What are the molecular formula and molecular weight of Sodium octyl sulfate?

Sodium octyl sulfate has molecular formula C8H17NaO4S and molecular weight 232.273 g/mol.

Is Sodium octyl sulfate hazardous?

Sodium octyl sulfate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Sodium octyl sulfate (CAS 142-31-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42761-0 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.