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antibacterial usnea extract usnic acid powder 98% cas.125-46-2
Usnic acid is extracted from Usnea, It is a kind of organic acid. In natural remedies, especially in the veterinary medicine, Usnic Acid is used in powders and ointments for the treatment of infections of the skin. This is because of its antibiotic properties, particularly against Gram-positive bacteria such as M. Tuberculosis as well as some pathogenic fungi. Usnic acid as a pure substance has been formulated in creams, toothpaste, mouthwash, deodorants and sunscreen products, in some cases as an active principle, in others as a preservative.
Usnic Acid
SPECIFICATION: 98%HPLC
APPEARANCE : yellow crystalline powder
CAS NO. : 125-46-2
FORMULA: C18H16O7
MOL WT. : 344.32
SYNONYMS : (+)-Usnic acid; (+)-Usnein; (+)-Usniacin;
D-2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyl-1,3(2H,9bH)- Dibenzofurandione;
MELTING POINT : 192- 204℃
Optical Rotation: +495° ~+ 497° (in CHCl3)
STABILITY: Stable under ordinary conditions
| Analysis |
Specification |
Result |
| Appearance |
yellow crystalline substance |
Complies |
| Odor |
Characteristics |
Complies |
| Assay (HPLC) |
Usnic Acid≥ 98% |
98.20% |
| Sieve Analysis |
100% pass 80 Mesh |
Complies |
| Loss on Drying |
≤1.0% |
0.52% |
| Ash |
≤1.0% |
0.61% |
| Heavy Metal |
<10ppm |
Complies |
| As |
≤2ppm |
Complies |
| Residual Solvents |
Eur. Pharm. |
Complies |
| Microbiology |
| Total Plane Count |
<1,000cfu/g |
Complies |
| Yeast & Moulds |
<100cfu/g |
Complies |
| E. Coli |
Negative |
Complies |
| Salmonella |
Negative |
Complies |
Function:
Usinic acid is extracted from Usnea. Usnea, also known as old man’s beard, is not a plant but a lichen—a symbiotic relationship between an algae and a fungus. The entire lichen is used medicinally. Usnea looks like long, fuzzy strings hanging from trees in the forests In natural remedies, especially in the veterinary medicine, Usnic Acid is used in powders and ointments for the treatment of infections of the skin. Usnic acid as a pure substance has been formulated in creams, toothpaste, mouthwash, deodorants and sunscreen products, in some cases as an active principle, in others as a preservative.
Application:
Usnic acid is known to exhibit antibacterial properties. In the United States, usnic acid (as a powder or ointment) is used to treat primarily skin infections, and has been shown to be effective in treating tuberculosis bacteria, as well as other pathogenic fungi. Pure usnic acid is also used in many types of creams, toothpastes, deodorants and sunscreens as a protectant and a preservative. Externally, it has been used to treat conditions such as ringworm and athlete's foot. It is used both in humans and on animals.
