Oxonic acid potassium salt


4,6-Dihydroxy-1,3,5-triazine-2-carboxylic acid potassium salt, Allantoxanic acid
Empirical Formula (Hill Notation):
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Quality Level




300 °C (lit.)

SMILES string




InChI key



Oxonic acid potassium salt is an inhibitor of uricase. The product from Sigma has been used for the inhibition of 5-fluorouracil-induced gastrointestinal toxicity without the loss of its antitumor activity in rats. It has also been used to induce hyperuricemia in rats; as it inhibits uric acid metabolism.


5 g in glass bottle
25, 100 g in poly bottle

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Jieyu Zuo et al.
The Journal of pharmacy and pharmacology, 70(1), 124-132 (2017-10-24)
Traditional Chinese herbal formulas are difficult to be understood because of complex compositions and specific therapeutic principles. To better understand herbal compatibility in Traditional Chinese medicine (TCM), this study was conducted to investigate the effects of a Chinese pharmacopoeia-listed formula...
T Shirasaka et al.
Cancer research, 53(17), 4004-4009 (1993-09-01)
The possibility of decreasing the gastrointestinal (GI) toxic effects of 5-fluorouracil (5-FU) on the digestive tract such as its injury of cells and induction of diarrhea, without reducing its antitumor activity, was investigated in rats. Oxonic acid was found to...
Kei Nishizawa et al.
PloS one, 14(4), e0214862-e0214862 (2019-04-06)
The effects of hyperuricemia on the expression of kidney drug transporters and on the pharmacokinetics of several substrate drugs were examined. We first established a rat model of hyperuricemia without marked symptoms of chronic kidney failure by 10-day co-administration of...
Haruka Fujikawa et al.
Antioxidants (Basel, Switzerland), 9(5) (2020-05-10)
The oxidant/antioxidant imbalance plays a pivotal role in the lung. Uric acid (UA), an endogenous antioxidant, is highly present in lung tissue, however, its impact on lung function under pathophysiological conditions remains unknown. In this work, pharmacological and genetic inhibition...
Yasushi Habu et al.
Biochemical pharmacology, 69(6), 993-999 (2005-03-08)
We previously reported that in hyperuricemic rats, renal impairment occurred and organic ion transport activity decreased, accompanied with a specific decrease in the expression of rat organic anion transporters, rOAT1 and rOAT3, and organic cation transporter, rOCT2. In the present...

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