Nitrilotriacetic acid
Also known as: NTA, Tris(carboxymethyl)amine, N,N-Bis(carboxymethyl)glycine, Triglycollamic acid, Complexon I, aminotriacetic acid, α,α',α''-Trimethylaminetricarboxylic acid, Nitrilotriessigsaeure, 2,2',2''-Nitrilotriacetic acid, Glycine, N,N-bis(carboxymethyl)-, tri(carboxymethyl)amine, nitrilotris(methylenecarboxylicacid)
Nitrilotriacetic acid (CAS 139-13-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H9NO6 and a molecular weight of 191.139 g/mol. Key properties include a melting point of 245 °C (dec.)(lit.), a boiling point of 498.2±40.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 255.1±27.3 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation and H351 — Suspected of causing cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 139-13-9
- Jingsj CID
- J-25018-0
- Molecular Formula
- C6H9NO6
- Molecular Weight
- 191.139 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 245 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 498.2±40.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 255.1±27.3 °C |
| Exact Mass | 191.042984 |
| PSA | 115.14000 |
| LogP | -1.76 |
| Vapor Pressure | 0.0±2.7 mmHg at 25°C |
| Refractive Index | 1.558 |
| Additional Property | Insoluble. |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
- H351 — Suspected of causing cancer
Customs & Trade Information
| HS Code | 2921199090 |
|---|---|
| Summary | 2921199090 other acyclic monoamines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Nitrilotriacetic acid?
The CAS number of Nitrilotriacetic acid is 139-13-9.
What are the molecular formula and molecular weight of Nitrilotriacetic acid?
Nitrilotriacetic acid has molecular formula C6H9NO6 and molecular weight 191.139 g/mol.
Is Nitrilotriacetic acid hazardous?
Nitrilotriacetic acid has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation; H351 — Suspected of causing cancer.
What are the upstream and downstream products of Nitrilotriacetic acid?
For Nitrilotriacetic acid, Upstream Products: N-epsilon-Carbobenzyloxy-L-lysine, Bromoacetic acid, Acetic acid, 2,2-hydrazonobis-; Downstream Products: Boc-Gly-Gly-Gly-OH, Formaldehyde, Glyoxylic 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. "Nitrilotriacetic acid (CAS 139-13-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25018-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.