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Aminotrimethylene phosphonic acid

Also known as: Amino tris(methylene phosphonic acid), Aminotri(methylene phosphonic acid), Nitrilotris(methylene)triphosphonic acid, Nitrilotri(methylphosphonic acid), Tris(phosphonomethyl)amine, Dequest 2000, Briquest 301, N,N,N-triphosphonomethyl amine

Aminotrimethylene phosphonic acid (CAS 6419-19-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H12NO9P3 and a molecular weight of 299.050 g/mol. Key properties include a melting point of ~215 °C (dec.), a boiling point of 746.2±70.0 °C at 760 mmHg, a density of 2.1±0.1 g/cm3 and a flash point of 405.1±35.7 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6419-19-8
Jingsj CID
J-1102273-4
Molecular Formula
C3H12NO9P3
Molecular Weight
299.050 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point~215 °C (dec.)
Boiling Point746.2±70.0 °C at 760 mmHg
Density2.1±0.1 g/cm3
Flash Point405.1±35.7 °C
Exact Mass298.972504
PSA205.26000
LogP-4.63
Vapor Pressure0.0±5.4 mmHg at 25°C
Refractive Index1.610

GHS Safety & Compliance

IrritantSignal word: Warning
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Aminotrimethylene phosphonic acid?

The CAS number of Aminotrimethylene phosphonic acid is 6419-19-8.

What are the molecular formula and molecular weight of Aminotrimethylene phosphonic acid?

Aminotrimethylene phosphonic acid has molecular formula C3H12NO9P3 and molecular weight 299.050 g/mol.

Is Aminotrimethylene phosphonic acid hazardous?

Aminotrimethylene phosphonic acid has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.

What are the upstream and downstream products of Aminotrimethylene phosphonic acid?

For Aminotrimethylene phosphonic acid, Upstream Products: Formaldehyde, Nitrilotriacetic acid; Downstream Products: [Nitrilotris(methylene)]trisphosphonic acid N-oxide, (Hydroxymethyl)phosphonic acid, Iminobis(methylphosphonic acid).

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

Last updated:

How to cite: Jingsj. "Aminotrimethylene phosphonic acid (CAS 6419-19-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1102273-4 (accessed 2026-11-09).

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