1,3,7-Trimethyluric acid

Also known as: 1,3,7-Trimethyl-7,9-dihydro-1H-purine-2,6,8(3H)-trione, 2,6,8-Trihydroxy-1,3,7-trimethylpurine, 8-oxy-caffeine, BA 2753, Trimethyluric acid, Uric acid, 1,3,7-trimethyl-, 1H-Purine-2,6,8(3H)-trione, 7,9-dihydro-1,3,7-trimethyl-

1,3,7-Trimethyluric acid (CAS 5415-44-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H10N4O3 and a molecular weight of 210.190 g/mol. Key properties include a melting point of ≥300ºC, a boiling point of 476.7ºC at 760mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 242.1ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.: 5415-44-1
Jingsj CID: J-1993472-6
Molecular Formula: C₈H₁₀N₄O₃
Molecular Weight: 210.190 g/mol
Category: Organic Acids
Last updated: 11/3/2026

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Physicochemical Properties

Melting Point	≥300ºC
Boiling Point	476.7ºC at 760mmHg
Density	1.6±0.1 g/cm3
Flash Point	242.1ºC
Exact Mass	210.075287
PSA	81.79000
LogP	0.06
Refractive Index	1.661

Activity & Biological Data

Target	Human Endogenous Metabolite
Additional Information	[1]. Y Benchekroun, et al. Isotopic effects on retention times of caffeine and its metabolites 1,3,7-trimethyluric acid, theophylline, theobromine and paraxanthine. J Chromatogr B Biomed Sci Appl. 1997 Jan 24;688(2):245-54. [2]. Madelé van Dyk, et al. Identification of the caffeine to trimethyluric acid ratio as a dietary biomarker to characterise variability in cytochrome P450 3A activity. Eur J Clin Pharmacol. 2019 Sep;75(9):1211-1218.

Target

Human Endogenous Metabolite

Additional Information

[1]. Y Benchekroun, et al. Isotopic effects on retention times of caffeine and its metabolites 1,3,7-trimethyluric acid, theophylline, theobromine and paraxanthine. J Chromatogr B Biomed Sci Appl. 1997 Jan 24;688(2):245-54. [2]. Madelé van Dyk, et al. Identification of the caffeine to trimethyluric acid ratio as a dietary biomarker to characterise variability in cytochrome P450 3A activity. Eur J Clin Pharmacol. 2019 Sep;75(9):1211-1218.

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1,3,7-Trimethyluric acid?

The CAS number of 1,3,7-Trimethyluric acid is 5415-44-1.

What are the molecular formula and molecular weight of 1,3,7-Trimethyluric acid?

1,3,7-Trimethyluric acid has molecular formula C8H10N4O3 and molecular weight 210.190 g/mol.

What are the upstream and downstream products of 1,3,7-Trimethyluric acid?

For 1,3,7-Trimethyluric acid, Upstream Products: Theophylline, 1,3-Dimethyl-8-nitro-2,3,6,7-tetrahydro-1H-purine-2,6-dione, Uric Acid; Downstream Products: Ammonia, Urea, Methylurea.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 11/3/2026

How to cite: Jingsj. "1,3,7-Trimethyluric acid (CAS 5415-44-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993472-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.