Triammonium citrate

Also known as: Ammonium citrate tribasic, Citric acid triammonium salt, 2-Hydroxy-1,2,3-propanetricarboxylic acid triammonium salt, Triammonium citrate 99-1, Citric Acid, Triammonium Salt, Citronensaeure, Triammonium-Verbindung

Triammonium citrate (CAS 3458-72-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H17N3O7 and a molecular weight of 243.215 g/mol. Key properties include a melting point of 185 °C (dec.)(lit.), a boiling point of 100 °C(lit.), a density of 1.22 g/mL at 20 °C and a flash point of 155.2ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.

CAS No.: 3458-72-8
Jingsj CID: J-1131810-8
Molecular Formula: C₆H₁₇N₃O₇
Molecular Weight: 243.215 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	185 °C (dec.)(lit.)
Boiling Point	100 °C(lit.)
Density	1.22 g/mL at 20 °C
Flash Point	155.2ºC
Exact Mass	243.106644
PSA	141.85000
Additional Property	1.8 (vs air)
Refractive Index	1.583
Additional Property	H2O: 1 M at 20 °C, clear, colorless

GHS Safety & Compliance

IrritantSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Activity & Biological Data

Target	Human Endogenous Metabolite
Additional Information	[1]. Zholobak NM, et al. Facile fabrication of luminescent organic dots by thermolysis of citric acid in urea melt, and their use for cell staining and polyelectrolyte microcapsule labelling. Beilstein J Nanotechnol. 2016 Dec 2;7:1905-1917. [2]. Chang Q, et al. Full Color Fluorescent Carbon Quantum Dots Synthesized from Triammonium Citrate for Cell Imaging and White LEDs. Dyes and Pigments, 2021, 193(18):109478.

Target

Human Endogenous Metabolite

Additional Information

[1]. Zholobak NM, et al. Facile fabrication of luminescent organic dots by thermolysis of citric acid in urea melt, and their use for cell staining and polyelectrolyte microcapsule labelling. Beilstein J Nanotechnol. 2016 Dec 2;7:1905-1917. [2]. Chang Q, et al. Full Color Fluorescent Carbon Quantum Dots Synthesized from Triammonium Citrate for Cell Imaging and White LEDs. Dyes and Pigments, 2021, 193(18):109478.

Frequently Asked Questions

What is the CAS number of Triammonium citrate?

The CAS number of Triammonium citrate is 3458-72-8.

What are the molecular formula and molecular weight of Triammonium citrate?

Triammonium citrate has molecular formula C6H17N3O7 and molecular weight 243.215 g/mol.

Which suppliers offer Triammonium citrate?

1 supplier(s) listed; request a quote for pricing.

Is Triammonium citrate hazardous?

Triammonium citrate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Triammonium citrate?

For Triammonium citrate, Upstream Products: Citric acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Triammonium citrate (CAS 3458-72-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1131810-8 (accessed 2026-11-09).

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