para-aminobenzoic acid

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para-aminobenzoic acid

(pâr`ə-əmē`nōbĕnzōĭk): see vitaminvitamin,
group of organic substances that are required in the diet of humans and animals for normal growth, maintenance of life, and normal reproduction. Vitamins act as catalysts; very often either the vitamins themselves are coenzymes, or they form integral parts of coenzymes.
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para-aminobenzoic acid

[¦par·ə ə¦mē·nō‚ben¦zō·ik ′as·əd]
(biochemistry)
C7H7O2N A yellow-red, crystalline compound that is part of the folic acid molecule; essential in metabolism of certain bacteria. Abbreviated PABA.
References in periodicals archive ?
In this study, the derivatization was done using glucose, fructose, and sucrose with p-aminobenzoic acid ethyl ester (ABEE), acetic acid, and sodium borohydride.
Also the effect of vitamins like, biotin, pyridoxin-HCl, riboflavin, p-aminobenzoic acid and nicotinic acid was determined on Ftase production.
The organic products were subjected to spot tests and chromatographic analysis (TLC technique) which revealed the formation of p-aminobenzoic acid (Figure 1), dimethylamine, and glycolic acid.
A mixed solution containing 0.1 mol/L p-aminobenzoic acid, 0.15 mol/L [(N[H.sub.4]).sub.2][S.sub.2][O.sub.8], and 0.2mol/L HN[O.sub.3] was reacted at 40[degrees]C for 24h with stirring.
Photo allergens After radiation Tetrachloro salicylanilide + Chlorhexidine + Triclosan + Methylcoumarin + Musk ambrette + Thiourea + Isoamyl p-methoxycinnamate + Ethylhexyl p-methoxycinnamate + Benzophenone 4 + Oxybenzone + 4-tert-butyl-4'-methoxy-dibenzoylmethane + Benzydamine + Sulfanilamide + Chlorpromazine + Promethazine + Hydrochlorothiazide + Carbamazepine + Piroxicam + Lichen acid mix + P-aminobenzoic acid + + = positive irradiated photo-epicutaneous test Discussion