Linoleic acid (LA) is an organic compound with the formula HOOC(CH2)7CH=CHCH2CH=CH(CH2)4CH3. Both alkene groups are cis. It is a fatty acid sometimes denoted 18:2 (n-6) or 18:2 cis-9,12. A linoleate is a salt or ester of this acid.
Stearidonic acid (SDA: C18H28O2; 18:4, n-3) is an ω-3 fatty acid, sometimes called moroctic acid. It is biosynthesized from alpha-linolenic acid (ALA: C18H30O2; 18:3, n-3) by the enzyme delta-6-desaturase, that removes two hydrogen (H) atoms from a fatty acid, creating a carbon/carbon double bonding, via an oxygen requiring unsaturation. SDA also act as precursor for the rapid synthesis of longer chain fatty acids, called N-acylethanolamine (NAEs), involved in many important biological processes. Natural sources of this fatty acid are the seed oils of hemp, blackcurrant, corn gromwell, and Echium plantagineum, and the cyanobacterium Spirulina. SDA can also be synthesized in a lab. A GMO soybean source is approved by the European Food Safety Authority.
Platinum(II) chloride is the chemical compound PtCl2. It is an important precursor used in the preparation of other platinum compounds. It exists in two crystalline forms, but the main properties are somewhat similar: dark brown, insoluble in water, diamagnetic, and odorless.
Tungsten(VI) oxytetrachloride is the inorganic compound with the formula WOCl4. This diamagnetic solid is used to prepare other complexes of tungsten. The red crystalline compound is soluble in nonpolar solvents but it reacts with alcohols and water and forms adducts with Lewis bases.
Protoporphyrin IX is an organic compound, classified as a porphyrin, that plays an important role in living organisms as a precursor to other critical compounds like heme (hemoglobin) and chlorophyll. It is a deeply colored solid that is not soluble in water. The name is often abbreviated as PPIX.
Trimesic acid, also known as benzene-1,3,5-tricarboxylic acid, is an organic compound with the formula C6H3(CO2H)3. It is one of three isomers of benzenetricarboxylic acid. A colorless solid, trimesic acid has some commercial value as a precursor to some plasticizers.
Diketene is an organic compound with the molecular formula C4H4O2, and which is sometimes written as (CH2CO)2. It is formed by dimerization of ketene, H2C=C=O. Diketene is a member of the oxetane family. It is used as a reagent in organic chemistry. It is a colorless liquid.
2-Chlorobenzoic acid is an organic compound with the formula ClC6H4CO2H. It is one of three isomeric chlorobenzoic acids, the one that is the strongest acid. This white solid is used as a precursor to a variety of drugs, food additives, and dyes.
Acetoxolone is a drug used for peptic ulcer and gastroesophageal reflux disease. It is an acetyl derivative of glycyrrhetinic acid. It is found in Echinopora lamellosa.
Argininosuccinic acid is a non-proteinogenic amino acid that is an important intermediate in the urea cycle.
Atromentin is a natural chemical compound found in Agaricomycetes fungi in the orders Agaricales and Thelephorales. It can also be prepared by laboratory synthesis. Chemically, it is a polyphenol and a benzoquinone.
Nickel(II) titanate, also known as nickel titanium oxide, is an inorganic compound with the chemical formula NiTiO3. It is a coordination compound between nickel(II), titanium(IV) and oxide ions. It has the appearance of a yellow powder. Nickel(II) titanate has been used as a catalyst for toluene oxidation.
Aminomethyl propanol (AMP) is an organic compound with the formula H2NC(CH3)2CH2OH. It is colorless liquid that is classified as an alkanolamine. It is a useful buffer and a precursor to numerous other organic compounds.
Xerocomic acid is a red-orange pigment found in fungi of the order Boletales. It is the precursor to variegatic acid, and is preceded by atromentic acid and atromentin. As an example, it is isolated from Serpula lacrymans. It is soluble in methanol. An oxidase acting on xerocomic acid is responsible for the "bluing" reaction seen in mushrooms.
Atromentic acid is a red-organge pigment found in fungi within the Boletales group. It is the precursor to variegatic acid and xerocomic acid, and is preceded by atromentin. As an example, it is isolated from Serpula lacrymans. It is soluble in methanol. Variants include homoatromentic acid. This pigment has been studied and elucidated by Wolfgang Steglich and colleagues over decades. When atromentin is oxidised with hydrogen peroxide a yellow product is produced. A sodium hydroxide solution is also yellow, but when this is neutralized with acid the red atromentic acid crystallises. Concentrated potassium hydroxide breaks up the compound to p-hydroxyphenylacetic acid and oxalic acid.
Cannabidiolic acid (CBDA), is a cannabinoid found in cannabis plants. It is most abundant in the glandular trichomes on the female seedless flowers or more accurately infructescence often colloquially referred to as buds. CBDA is the chemical precursor to cannabidiol (CBD). Through the process of decarboxylation cannabidiol is derived via a loss of a carbon and two oxygen atoms from the 1 position of the benzoic acid ring. Cannabinoids are a class of compounds that are essentially unique to the cannabis genus. Both marijuana and hemp belong to this genus.
Lithium lactate is a chemical compound, a salt of lithium and lactic acid with the formula CH3CH(OH)COOLi, an amorphous solid, very soluble in water.
Laccaic acids or laccainic acids are a group of five anthraquinone derivatives, designated A through E, which are components of the red shellac obtained from the insect Kerria lacca, similar to carminic acid and kermesic acid. This article focuses primarily on laccaic acid A (LCA).
