Sodium dodecyl sulfate
Also known as: Sodium lauryl sulfate, SDS, Dodecyl sodium sulfate, Lauryl sulfate sodium salt, Dodecyl sulfate sodium salt, Sodium dodecylsulfate, Lauryl sodium sulfate, Dodecylsulfuric acid sodium salt, Sulfuric acid monododecyl ester sodium salt
Sodium dodecyl sulfate (CAS 151-21-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H25NaO4S and a molecular weight of 288.379 g/mol. Key properties include a melting point of 206ºC, a density of 0.25g/ml and a flash point of >100ºC. It is classified under GHS with signal word Danger and hazard statements H228, H302 — Harmful if swallowed and H332 — Harmful if inhaled. It is listed by 1 supplier, from 0.06 to 5.00 CNY. Record last updated Nov 3, 2026.
- CAS No.
- 151-21-3
- Jingsj CID
- J-39842-6
- Molecular Formula
- C12H25NaO4S
- Molecular Weight
- 288.379 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | CP 500g | ¥30.00 | $0.01 /gBest ¥0.06/g CNY | CN China MOQ 500g | |
In Stock | AR 500g | ¥42.00 | $0.01 /g ¥0.08/g CNY | CN China MOQ 500g | |
In Stock | GR 500g | ¥55.00 | $0.02 /g ¥0.11/g CNY | CN China MOQ 500g |
Physicochemical Properties
| Melting Point | 206ºC |
|---|---|
| Density | 0.25g/ml |
| Flash Point | >100ºC |
| Exact Mass | 288.137115 |
| PSA | 74.81000 |
| LogP | 4.46490 |
| Additional Property | H2O: 0.1 M, clear to nearly clear, colorless to slightly yellow | ca. 150 g/L (20 ºC) |
GHS Safety & Compliance
- H228
- H302 — Harmful if swallowed
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
- H412 — Harmful to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2920909090 |
|---|---|
| Summary | 2920909090 esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives。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 Sodium dodecyl sulfate?
The CAS number of Sodium dodecyl sulfate is 151-21-3.
What are the molecular formula and molecular weight of Sodium dodecyl sulfate?
Sodium dodecyl sulfate has molecular formula C12H25NaO4S and molecular weight 288.379 g/mol.
Which suppliers offer Sodium dodecyl sulfate?
1 supplier(s) listed; reference unit price ¥0.06–5.00 /g.
Is Sodium dodecyl sulfate hazardous?
Sodium dodecyl sulfate has GHS signal word Danger and hazard statements H228; H302 — Harmful if swallowed; H332 — Harmful if inhaled.
What are the upstream and downstream products of Sodium dodecyl sulfate?
For Sodium dodecyl sulfate, Upstream Products: 1-Dodecanol, Lauric acid; Downstream Products: Malachite green carbinol base, 2-(Dodecyloxy)ethanol, Erythromycin Estolate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Sodium dodecyl sulfate (CAS 151-21-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39842-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.