2-(Benzylamino)ethyl hydrogen sulfate: Handling & Use Protocol

2-(Benzylamino)ethyl hydrogen sulfate is a sulfate ester intermediate featuring both a secondary amine and a sulfate monoester functionality, making it a versatile building block for organic synthesis and biochemical research.

Product Name

2-(Benzylamino)ethyl hydrogen sulfate

SKU

E730177

Functional Groups

Secondary amine (benzylamine) and sulfate monoester

Primary Application

Synthetic intermediate in organic and medicinal chemistry

Recommended Storage

Cool, dry, well-ventilated area; away from strong acids, bases, and oxidizers

Handling Precaution

Use appropriate PPE including gloves, lab coat, and eye protection

Chemical Identity and Properties

2-(Benzylamino)ethyl hydrogen sulfate (Aladdin SKU: E730177) is an organic sulfate ester compound that combines a benzylamino (secondary amine) group with an ethyl sulfate (sulfate monoester) moiety. The molecule can be regarded as the O-sulfate derivative of 2-(benzylamino)ethanol. Its dual functionality—a nucleophilic nitrogen center and a hydrolyzable sulfate ester—makes it a valuable intermediate in multi-step organic syntheses, particularly in the preparation of aminoalcohol derivatives, surfactant precursors, and biologically active scaffolds. Researchers should note that the sulfate ester group may be susceptible to hydrolysis under strongly acidic or basic aqueous conditions, and the secondary amine may participate in alkylation or acylation reactions.

Safety and Handling Requirements

Before working with 2-(Benzylamino)ethyl hydrogen sulfate, consult the relevant Safety Data Sheet (SDS) and applicable institutional safety guidelines. Observe the following precautions:

• Personal Protective Equipment (PPE): Wear chemical-resistant gloves (e.g., nitrile), a laboratory coat, and safety glasses or a face shield at all times during handling.
• Ventilation: Handle the compound in a fume hood or well-ventilated area to minimize inhalation exposure to dust or aerosols.
• Skin and Eye Contact: Avoid direct skin and eye contact. In the event of exposure, rinse affected areas thoroughly with copious amounts of water and seek medical attention if irritation persists.
• Incompatibilities: Keep away from strong oxidizing agents, strong acids, and strong bases, which may cause decomposition or vigorous reaction.
• Waste Disposal: Dispose of all waste in accordance with local, national, and institutional regulations governing chemical waste.

Storage Conditions and Stability

Proper storage of 2-(Benzylamino)ethyl hydrogen sulfate is essential to maintaining reagent integrity and experimental reproducibility:

• Temperature: Store at room temperature (15–25 °C) in a cool, dry location unless the product label or SDS specifies otherwise.
• Container: Keep the container tightly sealed when not in use to prevent moisture uptake and contamination.
• Light: Store away from direct sunlight and UV sources.
• Segregation: Store separately from incompatible materials, including oxidizers, strong acids, and strong bases.
• Stability Considerations: The sulfate ester linkage is susceptible to hydrolysis in aqueous media, particularly at extreme pH values. Prepare aqueous stock solutions fresh or validate stability under your specific experimental conditions before use in long-term studies.

Solution Preparation and Experimental Use

Follow the steps below when preparing and using 2-(Benzylamino)ethyl hydrogen sulfate in laboratory experiments:

1. Determine Required Quantity: Calculate the mass of reagent needed based on desired molarity, volume, and the molecular weight of the compound. Refer to the product specification sheet for the confirmed molecular weight.
2. Weigh Accurately: Tare an appropriate vessel on an analytical balance. Transfer the required amount of 2-(Benzylamino)ethyl hydrogen sulfate using a clean, dry spatula. Avoid prolonged exposure to ambient humidity.
3. Select Solvent: Choose a suitable solvent based on your application. The compound is expected to have meaningful solubility in polar protic solvents (e.g., water, methanol) due to its ionic sulfate group. Verify compatibility with your reaction system.
4. Dissolve: Add the weighed solid to the solvent incrementally with gentle stirring or sonication until fully dissolved. For aqueous solutions, prepare at near-neutral pH where feasible to minimize hydrolysis.
5. Filter if Necessary: If undissolved particles are observed, filter through a 0.22 µm or 0.45 µm membrane filter appropriate for the solvent.
6. Label and Date: Clearly label the prepared solution with compound name, concentration, solvent, preparation date, and storage conditions.
7. Use Promptly or Validate Stability: Use freshly prepared solutions when possible. If solutions must be stored, validate stability under your intended conditions prior to use in critical experiments.

Note: Specific reaction conditions, concentrations, and solvents should be optimized for each application. The above steps represent general good laboratory practice.

Quality Control and Troubleshooting

To ensure experimental reliability when using 2-(Benzylamino)ethyl hydrogen sulfate, consider the following quality control checks and troubleshooting guidance:

• Purity Verification: Confirm reagent purity from the Certificate of Analysis (CoA) supplied with each lot. If necessary, verify identity and purity using NMR spectroscopy, HPLC, or mass spectrometry prior to use in critical assays.
• Lot-to-Lot Consistency: Record the lot number for every experiment to enable troubleshooting and reproducibility assessments across batches.
• Solubility Issues: If the compound does not dissolve readily, check solvent compatibility, increase temperature slightly (where chemically appropriate), or increase sonication time. Do not assume full dissolution based on visual inspection alone for highly concentrated solutions.
• Unexpected Reactivity: If anomalous results are observed (e.g., unexpected color change, precipitation, or altered reaction outcome), consider whether hydrolysis of the sulfate ester or oxidation of the amine has occurred. Prepare fresh reagent and re-evaluate.
• Contact Aladdin Scientific: For product-specific technical questions, purity concerns, or custom requirements, contact Aladdin Scientific technical support with your lot number and CoA.

Frequently asked questions

What solvents are recommended for dissolving 2-(Benzylamino)ethyl hydrogen sulfate?

Due to the ionic sulfate ester group, 2-(Benzylamino)ethyl hydrogen sulfate is expected to show good solubility in polar protic solvents such as water and methanol. Solubility in non-polar or aprotic solvents may be limited. Always verify solubility under your specific experimental conditions before use.

Is 2-(Benzylamino)ethyl hydrogen sulfate stable in aqueous solution?

The sulfate ester linkage in 2-(Benzylamino)ethyl hydrogen sulfate is susceptible to hydrolysis, particularly under strongly acidic or basic conditions. At near-neutral pH, stability is generally better, but researchers should prepare fresh aqueous solutions where possible and validate stability under their specific experimental conditions for long-term studies.

What personal protective equipment (PPE) is required when handling this compound?

At minimum, wear chemical-resistant gloves (such as nitrile gloves), a laboratory coat, and safety glasses or a face shield when handling 2-(Benzylamino)ethyl hydrogen sulfate. Handle the compound in a fume hood to minimize inhalation exposure. Always consult the Safety Data Sheet (SDS) for complete safety information.

How should I confirm the purity and identity of 2-(Benzylamino)ethyl hydrogen sulfate before use?

Review the Certificate of Analysis (CoA) provided with your lot of E730177 for purity data. For critical applications, independent verification by NMR spectroscopy, HPLC, or mass spectrometry is recommended to confirm both identity and purity prior to use.

Where should 2-(Benzylamino)ethyl hydrogen sulfate be stored?

Store 2-(Benzylamino)ethyl hydrogen sulfate in a cool, dry, well-ventilated area, away from strong acids, bases, and oxidizing agents. Keep the container tightly sealed and protected from direct sunlight. Always refer to the product label and SDS for the most up-to-date storage requirements.

References

1. Aladdin Scientific Product Page: 2-(Benzylamino)ethyl hydrogen sulfate, SKU E730177. Aladdin Scientific Corp.
2. March, J. Advanced Organic Chemistry: Reactions, Mechanisms, and Structure. 4th ed. Wiley-Interscience, 1992. (General reference for sulfate ester reactivity and amine chemistry.)

Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.