LICHEN ACIDS

Lichens are a unique life form that depends upon the symbiotic relationship between algae and fungi. Together this association produces some of the most hardy organisms on earth.

 

 


D1000: ATRANORIN
3-Hydroxy-4-(methoxycarbonyl)-2,5-dimethylphenyl 3-formyl-2,4-dihydroxy-6-methylbenzoate. Parmelin
CAS #: 479-20-9; C19H18O8; mol wt. 374.35.
Occurrence: common constituent of Parmelia, Lecanora and numerous other genera.
Appearance: colorless crystals, mp: 196-197°C.
Solubility: insoluble in water; soluble in DMSO, ethanol, and most nonpolar solvents.
Stability: unstable to alkali; store at room temperature.
References: Helv Chim Acta 17: 1319 (1934); Tetrahedron 21: 3531 (1965)

Availability: 100 mg, 1 gram

 

 


D3000: LECANORIC ACID
4-Carboxy-3-hydroxy-5-methylphenyl 2,4-dihydroxy-6-methylbenzoate. Glabratic acid
CAS #: 480-56-8; C16H14O7; mol wt. 318.28.
Occurrence: Evernia, Parmelia and Umbilicaria species.
Appearance: colorless crystals, mp: 175-176°C.
Solubility: insoluble in water and hexane; soluble in DMSO, ethanol, and ethyl acetate.
Stability: unstable to alkali; store at room temperature.
References: Monatsh Chem 61: 147 (1932); Tetrahedron 21: 3531 (1965)

Availability: 100 mg, 1 gram

 

 


D3200: DIFFRACTAIC ACID
4-Carboxy-3-hydroxy-2,5-dimethylphenyl 2,4-dimethoxy-3,6-dimethylbenzoate. Dirhizonic acid
CAS #: 436-32-8; C20H22O7; mol wt. 374.39.
Occurrence: Usnea species.
Appearance: colorless crystals, mp: 189°C dec.
Solubility: insoluble in water and hexane; soluble in DMSO, ethanol, and ethyl acetate.
Stability: unstable to alkali; store at room temperature.
References: Helv Chim Acta 11: 864 (1928); J Chem Soc 1932: 1675

Availability: 100 mg, 1 gram

 



 

 


 

 

 

 

 

D4900: FUMARPROTOCETRARIC ACID

 


D5000: LOBARIC ACID
Usnetic acid
CAS #: 522-53-2; C25H28O8; mol wt. 459.49.
Occurrence: Stereocaulon and Parmelia species.
Appearance: colorless crystals, mp: 192°C.
Solubility: insoluble in water and hexane; soluble in DMSO, ethanol, and ethyl acetate.
Stability: stable; store at room temperature.
References: Ber 69: 643 (1936); Phytochemistry 13: 2315 (1974)

Availability: 100 mg, 1 gram

 


D9000:VULPINIC ACID




 

 

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