Bayville Chemical Supply Company Inc 70-G East Jefryn Boulevard Deer Park, New York, 11729 USA Telephone: 631-586-4309 Fax: 631-254-5591 E-Mail:
Bayville Chemical Supply Company Inc70-G East Jefryn BoulevardDeer Park, New York, 11729  USA           Telephone: 631-586-4309      Fax: 631-254-5591      E-Mail:




Usnic Acid is an organic chemical extracted from usnea, a type of lichen. It is also known as “old man’s beard” because of its resemblance to human facial hair. When Usnic Acid is extracted from the plant it is yellow and crystalline in appearance... When mixed with water it loses its yellow tint and appears colorless.





Usnic Acid is used as a preservative and as the active ingredient in Medicinal Products. In the United States Usnic Acid is used as a powder ointment to treat primary skin infections and has been shown to be effective in treating tuberculosis bacteria as well as other pathogenic fungi.




Name:                         Usnic Acid

Synonyms:                  2,6-Diacetyl-1,2,3,9B-Tetrahydro-



CAS#:                         [125-46-2]

Appearance:               Yellow Crystalline Substance

Molecular Formula:     C18H16O7

Molecular Weight:       344.32

Assay:                         98% (HPLC)

Solubility:                    Clear Colorless Solution at 0.1 Mg/MI in cool water


Where to Find Us:

Bayville Chemical
70 East Jefryn Boulevard
Suite G
Deer Park, NY 11729

Phone: 631 586-4309

What's New

New larger location

As of August 2014, we have moved to this new, larger, modern facility to better service your needs.


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