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Phenol, Liquified 88% to 90% USP, Plus Indicators | Lab Alley

Phenol

Liquified phenol in Lab and USP Grade, plus phenol based lab reagents, in stock and ready to ship.

Pure phenol is a crystalline solid at room temperature, which surprises people who only know it as a liquid. What Lab Alley and most labs actually sell as liquid phenol is phenol dissolved in a small amount of water, just enough to keep it flowing instead of solidifying on the shelf.

Lab Alley carries liquified phenol at 88% Lab Grade and 90% USP Grade, along with two phenol based specialty reagents, Phenol Red Indicator and Lacto Phenol Cotton Blue Solution, for microbiology and pH testing work. All four products are priced and in stock online, with SDS and COA included. Phenol is corrosive and toxic on contact, so real PPE and careful handling matter at every concentration.

256,000+ customers served
99.5% of orders ship in 1–2 business days
98.9% inventory accuracy
SDS + COA available online, every product
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About Phenol

Phenol (C6H5OH), also called carbolic acid, hydroxybenzene, or phenylic acid, is a hygroscopic crystalline solid at room temperature, with a melting point of 40.5°C, a boiling point of 181.7°C, and a density of 1.07 g/cm3. It has a formula weight of 94.11 and a distinctive sweet, medicinal odor. Because pure phenol solidifies below its melting point, Lab Alley sells it liquified, mixed with a small amount of water so it stays a workable liquid at room temperature. Per Lab Alley's own safety data sheets, liquified phenol causes severe skin burns and eye damage, is toxic if swallowed, in contact with skin, or inhaled, and is suspected of causing genetic defects, with repeated exposure affecting the liver, kidney, blood, and central nervous system. This is a chemical that demands real PPE, not casual handling.


COMMON APPLICATIONS

Phenol is used as a disinfectant and antiseptic, one of the oldest known antimicrobial agents, a chemical intermediate in organic synthesis, a reagent in biological and analytical testing, and an ingredient in some pharmaceutical and cosmetic formulations. Phenol Red is used as a pH indicator in swimming pool test kits and biological labs, and Lacto Phenol Cotton Blue Solution is used to stain and mount fungal specimens for microscopy.


GRADES EXPLAINED

Lab Grade liquified phenol, at 88%, has solid purity but is not tested against a certified standard, so it fits general laboratory and industrial use. USP Grade liquified phenol, at 90%, is tested to United States Pharmacopeia requirements, the grade to use for pharmaceutical and medical applications. Phenol Red Indicator and Lacto Phenol Cotton Blue Solution are not phenol at a different purity. They are separate, phenol containing reagent solutions formulated for specific lab uses, pH indication and fungal staining, rather than general purpose phenol.


TYPES & GRADES AT A GLANCE

Is the general purpose entry point, for laboratory and industrial use.
Meets pharmacopeial standards, for pharmaceutical and medical applications.
Is a phenol based pH indicator solution for acid base testing.
Is a phenol based staining solution for mounting and viewing fungal specimens.

WHY BUY FROM LAB ALLEY

256,000+ customers already order their chemicals from Lab Alley.

99.5% of orders ship within 1 to 2 business days, so a phenol order does not stall your production or research schedule.

98.9% inventory accuracy means the concentration and product you see in stock is what actually ships.

SDS and COA are available online for every phenol product we carry.

Frequently Asked Questions

What's the difference between 88% Lab Grade and 90% USP Grade liquified phenol?
Lab Grade has solid purity but is not tested against any certified standard, fine for general laboratory and industrial use. USP Grade is tested to United States Pharmacopeia requirements, which is what pharmaceutical and medical applications call for by name.
Why is phenol sold as a liquid if it is actually a solid?
Pure phenol melts at 40.5°C, just above typical room temperature, so it solidifies into crystals on the shelf. Adding a small amount of water, enough to make an 88% or 90% solution, lowers that melting point and keeps the product a workable liquid at room temperature.
Do I need a permit to buy phenol?
No. Phenol does not require a TTB permit or similar authorization. It is corrosive and toxic, so it ships under standard hazardous material handling, but that is a shipping classification, not a purchase permit.
Is phenol Kosher or Halal certified?
No. None of our phenol products currently carry Kosher or Halal certification.
Which product should I use for pH testing versus fungal microscopy?
Phenol Red Indicator is formulated specifically for pH testing, changing color as the solution moves through its transition range. Lacto Phenol Cotton Blue Solution is formulated for mounting and staining fungal specimens on a microscope slide. They are not interchangeable, even though both contain phenol.
How corrosive is phenol compared to other lab acids?
Phenol causes severe skin burns and eye damage on contact, similar to a strong acid, but it also absorbs through skin more readily than many acids do, which is part of why prolonged or repeated exposure can affect the liver, kidney, blood, and nervous system. Treat any concentration of liquified phenol with the same caution you would a corrosive acid, with proper PPE and an eyewash station nearby.
Can I buy phenol in larger quantities?
Liquified phenol is currently stocked in smaller sizes, up to 500 mL, rather than drums or totes. Phenol Red Indicator and Lacto Phenol Cotton Blue Solution are lab reagents typically bought in similar small volumes. Contact us through Bulk & Custom Chemicals if you need a larger quantity of liquified phenol specifically.

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