30% Acetic Acid in DMSO: Uses, Handling & FAQs
30% Acetic Acid in DMSO: Uses, Handling & FAQs
30% acetic acid in DMSO is a ready-to-use, precisely formulated reagent solution widely employed in biochemical assays, protein studies, and cell biology protocols requiring a combined polar aprotic and acidic chemical environment.
- SKU
- A492565-02C
- Composition
- 30% (v/v) acetic acid in dimethyl sulfoxide (DMSO)
- Physical State
- Clear liquid at room temperature
- Primary Solvent
- Dimethyl sulfoxide (DMSO) — highly polar aprotic solvent with excellent solvating capacity
- Acetic Acid Role
- Provides an acidic environment; denaturant and pH modifier in biological assays
- Storage Recommendation
- Store tightly sealed, away from heat and ignition sources, at room temperature or as indicated on product label
What Is 30% Acetic Acid in DMSO and How Is It Used?
30% acetic acid in DMSO (SKU: A492565-02C) is a pre-mixed reagent solution consisting of 30% (v/v) glacial acetic acid dissolved in dimethyl sulfoxide (DMSO). This combination leverages the outstanding solvating power of DMSO — one of the most widely used polar aprotic solvents in life science research — together with the acidifying and denaturing properties of acetic acid.
Common laboratory applications include elution of bound dyes from cell monolayers in colorimetric viability assays (such as crystal violet or MTT-related protocols), protein denaturation steps, solubilization of hydrophobic compounds prior to acidification, and as a component in certain fixation or extraction protocols. The ready-to-use format eliminates the need for in-house preparation, reducing pipetting errors and improving reproducibility.
Safety, Handling, and Compatibility Considerations
Both acetic acid and DMSO are hazardous chemicals requiring careful handling. Acetic acid is corrosive and flammable, with a sharp, pungent odor; DMSO is a penetration enhancer that can rapidly carry dissolved substances through skin, making dermal exposure to this mixture potentially more hazardous than exposure to acetic acid alone. Always wear appropriate personal protective equipment (PPE), including nitrile gloves, safety glasses, and a lab coat when working with this reagent.
Work in a well-ventilated area or a chemical fume hood to avoid inhalation of acetic acid vapors. Keep the reagent away from open flames, strong oxidizers, and incompatible bases. In case of skin contact, remove contaminated clothing immediately and rinse the affected area thoroughly with water. Consult the Safety Data Sheet (SDS) provided by Aladdin Scientific for complete hazard and first-aid information before use.
Storage, Stability, and Shelf Life
To maintain the integrity and concentration accuracy of 30% acetic acid in DMSO, store the product in its original, tightly closed container at room temperature, protected from direct sunlight, heat sources, and moisture. DMSO has a relatively high freezing point (~18.5 °C); if the product solidifies during cold storage or transport, it can be gently warmed to room temperature and mixed before use without affecting quality.
Acetic acid is volatile; repeated opening of the container may gradually alter the concentration over time. It is advisable to aliquot the reagent into single-use volumes where feasible. Always check the expiration date on the product label and follow Aladdin Scientific's storage recommendations. Discard any reagent showing visible discoloration, particulate matter, or unusual odor changes.
Ordering, Specifications, and Quality Assurance
30% acetic acid in DMSO is available from Aladdin Scientific under SKU A492565-02C. As a research-grade reagent, it is manufactured and quality-controlled to ensure consistent composition and purity suitable for standard laboratory protocols. Researchers should verify that the reagent grade meets the requirements of their specific application, particularly where downstream analytical sensitivity is critical.
For bulk quantities, custom packaging, or specific purity certifications, contact Aladdin Scientific's customer service team. When placing an order, reference SKU A492565-02C to ensure accurate fulfillment. Certificates of Analysis (CoA) may be available upon request and should be reviewed to confirm lot-specific specifications prior to critical experiments.
Frequently asked questions
What is 30% acetic acid in DMSO used for in research?
30% acetic acid in DMSO is commonly used to elute crystal violet or other bound dyes from cell monolayers in cell viability and proliferation assays, to denature proteins in biochemical workflows, and to solubilize hydrophobic compounds requiring an acidic medium. Its ready-to-use format ensures reproducible results across experiments.
Why is DMSO used as the solvent instead of water or ethanol?
DMSO is an exceptionally powerful polar aprotic solvent with high solvating capacity for both polar and nonpolar compounds, making it ideal for dissolving substances that are poorly soluble in water or protic solvents. Additionally, DMSO is miscible with water and many organic solvents, offering versatility in downstream dilution steps. Its high boiling point and low volatility also contribute to formulation stability compared to ethanol.
Is 30% acetic acid in DMSO safe to use, and what precautions are required?
This reagent requires careful handling. DMSO is a skin penetrant that can enhance absorption of dissolved substances through the skin, while acetic acid is corrosive and irritating to the eyes, skin, and respiratory tract. Always use nitrile gloves, safety glasses, and a lab coat, and work in a well-ventilated area or fume hood. Consult the product SDS for full hazard information.
Can 30% acetic acid in DMSO be diluted with water for use in aqueous assays?
Yes, DMSO is miscible with water in all proportions, so dilution with water is generally feasible. However, researchers should be aware that diluting with water will reduce the solubilizing power of DMSO and may cause precipitation of poorly water-soluble compounds. Always validate any diluted formulation in your specific assay system before use in critical experiments.
How should I store 30% acetic acid in DMSO (A492565-02C) to maintain its stability?
Store the product in its original tightly closed container at room temperature, away from heat, open flames, and direct sunlight. If the reagent solidifies (DMSO freezes near 18.5 °C), warm it gently to room temperature before use. Minimize repeated opening to limit acetic acid evaporation, and always check the label expiry date.
What is the product SKU for 30% acetic acid in DMSO from Aladdin Scientific?
The product SKU is A492565-02C. When ordering, please reference this SKU to ensure accurate fulfillment. Contact Aladdin Scientific's customer service for information on available pack sizes, bulk pricing, or Certificates of Analysis.
References
- Clayden, J.; Greeves, N.; Warren, S. Organic Chemistry, 2nd ed.; Oxford University Press: Oxford, 2012. (General properties of acetic acid and DMSO as solvents)
- Jacob, S. W.; Herschler, R. Pharmacology of DMSO. Cryobiology 1986, 23(1), 14–27. (Overview of DMSO properties and skin penetration enhancement)
- Aladdin Scientific. Safety Data Sheet: 30% Acetic Acid in DMSO, SKU A492565-02C. (Internal product documentation — consult supplier for current SDS)
Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
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