HEPTADECYL SODIUM SULFATE

• CAS: 5910-79-2
• Catalog Number: ACM5910792
• Category: Main Products
• Molecular Weight: 358.41
• Molecular Formula: C17H35NaO4S

Case Study

Sodium Heptadecyl Sulfate as a Luminescence Enhancer for the Determination of Lorazepam in Pharmaceutical Tablets

Anelchyk, Ganna, et al. Acta Poloniae Pharmaceutica-Drug Research 67.5 (2010): 469-473.

Sodium heptadecyl sulfate acts as an anionic surfactant that markedly enhances the sensitized terbium luminescence of the lorazepam complex, supporting a simple extraction-free analytical method for drug quantification in pharmaceutical tablets.
Experimental Protocol: A surfactant solution at 10^-2 mol/L is prepared in water, and ternary complexes are formed by mixing terbium chloride at 10^-3 mol/L, lorazepam working solution, surfactant at 1.5 x 10^-4 mol/L and urothropine buffer at pH 6.5, diluted to 10 mL and measured after 5 min at emission 545 nm with excitation at 270 nm. All measurements are performed at room temperature between 21 and 23 degrees Celsius. Tablet powder equivalent to 5 mg of active ingredient is extracted in ethanol and analyzed identically.
Performance Evaluation: The ternary system with a 1:1:2 ratio of lorazepam, terbium and surfactant gives a linear calibration from 0.05 to 20.0 ug/mL with a limit of detection of 0.016 ug/mL and correlation coefficient 0.9985. Recovery ranges from 97.0% to 102.8% with an average accuracy of 99.1%, intra-day and inter-day precision of 2.8% and 3.9%, and a large Stokes shift of 275 nm, with no interference from common excipients.

Sodium Heptadecyl Sulfate as a Surfactant for Solar Energy Conversion and Storage in Photogalvanic Cells

Gangotri, K. M., P. Aseri, et al. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 35.4 (2013): 312-320.

Sodium heptadecyl sulfate functions as a surfactant additive in a photogalvanic cell containing ethylenediaminetetraacetic acid as reductant and Azur B as photosensitizer, improving the solubilization of dye molecules and stabilizing the cell for solar energy conversion and storage.
Experimental Protocol: An H-shaped cell is filled with 25 mL of solution containing the surfactant at 7.20 x 10^-3 mol/L, ethylenediaminetetraacetic acid at 2.20 x 10^-3 mol/L and Azur B at 4.00 x 10^-5 mol/L at pH 12.60. A platinum electrode is immersed in the illuminated arm and a reference electrode in the dark arm, and the cell is irradiated with a tungsten lamp at 10.4 mW/cm² while maintaining a temperature of 303 K. Current-voltage characteristics are recorded under variable external load.
Performance Evaluation: The system generates a photopotential of 778.0 mV and photocurrent of 45.0 uA, with maximum power of 35.01 uW, conversion efficiency of 0.14% and fill factor of 0.3169. The initial current generation rate reaches 20.0 uA/min and the cell operates for 40 min in the dark. Without the surfactant, the photopotential drops to 600 mV, efficiency to 0.06% and storage to 11 min.

Custom Q&A

What is the molecular formula of heptadecyl sodium sulfate?

The molecular formula of heptadecyl sodium sulfate is C17H35NaO4S.

What is the molar mass of heptadecyl sodium sulfate?

The molar mass of heptadecyl sodium sulfate is 358.5 g/mol.

What are some synonyms for heptadecyl sodium sulfate?

Some synonyms for heptadecyl sodium sulfate include sodium heptadecyl sulfate and sodium cetyl/stearyl sulfate.

When was heptadecyl sodium sulfate created in PubChem?

Heptadecyl sodium sulfate was created in PubChem on February 5, 2008.

What is the InChIKey of heptadecyl sodium sulfate?

The InChIKey of heptadecyl sodium sulfate is HHURSJAUVYNJBT-UHFFFAOYSA-M.

What is the topological polar surface area of heptadecyl sodium sulfate?

The topological polar surface area of heptadecyl sodium sulfate is 74.8 Å^2.

How many hydrogen bond acceptors does heptadecyl sodium sulfate have?

Heptadecyl sodium sulfate has 4 hydrogen bond acceptors.

What is the exact mass of heptadecyl sodium sulfate?

The exact mass of heptadecyl sodium sulfate is 358.21537505 g/mol.

How many rotatable bonds does heptadecyl sodium sulfate have?

Heptadecyl sodium sulfate has 17 rotatable bonds.

What is the complexity of heptadecyl sodium sulfate?

The complexity of heptadecyl sodium sulfate is 315.