Surfactants
REACH
Sodium heptanesulfonate
CAS Number
22767-50-6
EC Number
245-210-5
What is Sodium heptanesulfonate?
Sodium heptanesulfonate (CAS 22767-50-6) is an anionic surfactant and ion-pairing reagent used in pharmaceutical, industrial, and personal care manufacturing.
Where is Sodium heptanesulfonate used?
- Pharmaceutical: mobile phase modifier in ion-pair reversed-phase HPLC for separating and quantifying basic drugs and impurities
- Personal care: surfactant in cleansing systems for controlled emulsification
- Textile and leather: degreasing baths and dyeing auxiliaries
- Printing and packaging: ink formulations and surface treatment
- It also acts as a surface-active agent in formulation and cleaning.
Good to know: The monohydrate is the standard grade for chromatographic use. Anhydrous and monohydrate forms are both commercially available.
Other Names (Synonyms)
1-Heptanesulfonic acid sodium salt|Sodium 1-heptanesulfonate|RefChem:75858|sodium heptane-1-sulfonate|Sodium heptane-1-sulphonate|C7H15NaO3S|1-Heptanesulfonic acid, sodium salt (1:1)|Heptylsulfonic acid sodium salt
What are the physical properties of Sodium heptanesulfonate?
Melting Point >300 °C(lit.)
Density 1.017 g/cm
Appearance White crystalline powder
Color White
Form Crystalline Powder of Flakes
Water Solubility soluble
pH 5.5-7.5 (100g/l, H2O, 20℃)
How is Sodium heptanesulfonate classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Which trade and regulatory codes apply to Sodium heptanesulfonate?
HS Code 29041000
Storage Class 11 - Combustible Solids
WGK (Germany) 3