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Pentetic acid

Also known as: Diethylenetriaminepentaacetic acid, DTPA, Diethylenetriamine-N,N,N',N'',N''-pentaacetic acid, N,N-Bis[2-[bis(carboxymethyl)amino]ethyl]glycine, N,N-Bis{2-[bis(carboxymethyl)amino]ethyl}glycine, Pentacarboxymethyl Diethylenetriamine, Diethylenetrinitrilopentaacetic acid, Clewat DA, EINECS 200-652-8, MFCD00004289

Pentetic acid (CAS 67-43-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H23N3O10 and a molecular weight of 393.346 g/mol. Key properties include a melting point of 219-220 °C(lit.), a boiling point of 721.1±60.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 389.9±32.9 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
67-43-6
Jingsj CID
J-32908-2
Molecular Formula
C14H23N3O10
Molecular Weight
393.346 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point219-220 °C(lit.)
Boiling Point721.1±60.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point389.9±32.9 °C
Exact Mass393.138336
PSA196.22000
LogP0.05
Vapor Pressure0.0±5.0 mmHg at 25°C
Refractive Index1.590
Additional Property5 g/L (20 ºC)

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled

Activity & Biological Data

Additional Information[1]. Huang Y, et al. Enhanced selective adsorption of lead(II) from complex wastewater by DTPA functionalized chitosan-coated magnetic silica nanoparticles based on anion-synergism. J Hazard Mater. 2022;422:126856.

Customs & Trade Information

HS Code2916190090
Summary2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of Pentetic acid?

The CAS number of Pentetic acid is 67-43-6.

What are the molecular formula and molecular weight of Pentetic acid?

Pentetic acid has molecular formula C14H23N3O10 and molecular weight 393.346 g/mol.

Is Pentetic acid hazardous?

Pentetic acid has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation; H332 — Harmful if inhaled.

What are the upstream and downstream products of Pentetic acid?

For Pentetic acid, Upstream Products: Formaldehyde, Diethylenetriamine; Downstream Products: Diethylenetriaminepenta(methylene-phosphonic acid), Diethylenetriaminepentaacetic dianhydride.

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

Last updated:

How to cite: Jingsj. "Pentetic acid (CAS 67-43-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32908-2 (accessed 2026-11-07).

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