Formaldehyde (Formalin), 37%, 20L

  • 37%
  • H2CO
  • 50-00-0
  • Download
  • See Below
  • Ground shipping within lower 48 US states. Adult signature required upon delivery.
  • UN2209, Class 8, PG III
  • Buy at least 4, save 10%
  • NC-7523
Price: $149.95
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Store Above 40°F

Freezing temperatures can cause formaldehyde to form paraformaldehyde. This appears as white inclusions. Do not use if using formaldehyde to treat fish parasites. Paraformaldehyde is TOXIC to fish. Store above 40°F (4.4°C)

Save money by buying this bulk (20L, 5 gal.) size.

Our commercial grade of Formaldehyde or Formalin solution contains 10-15% methanol as a stabilizer. It is a colorless liquid with a strong pungent odor and is soluble in water and alcohol. Its multiple uses include as preservatives, embalming fluids, and as a corrosion inhibitor.

It is important to understand necessary precautions prior to use, as Formaldehyde is a strong irritant and possible carcinogen.

For shipping, Formaldehyde is in hazardous materials Class 8: Corrosive Substances. This twenty-liter size only ships to destinations within the 48 contiguous US states using Standard Ground. A HazMat fee applies. Adult signature required upon delivery. Shipping to a commercial address is suggested.


Unopened chemicals in original packaging may be returned within 30 days of shipment with prior approval. Call 800-372-6726. Customers are responsible for shipping costs.


Chemicals with hazard fees are limited to the 48 contiguous U.S. states. Ground-only (No-Fly) chemicals are limited to the 48 contiguous U.S. states and Canada, unless otherwise stated.


Certificates of Analysis for chemicals are available upon request. Use our request page at this link