Molekula
Nitrilotriacetic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Nitrilotriacetic acid (NTA) is a synthetic aminopolycarboxylic acid widely used as a chelating agent in detergents, water treatment, and industrial cleaning formulations to bind metal ions and prevent scaling. It is also applied in biochemical research for protein purification and metal ion buffering. Nitrilotriacetic acid has the CAS number 139-13-9, with the molecular formula N(CH₂COOH)₃ and a molecular weight of 191.14 g/mol. It is stored at ambient conditions and carries a **Warning** signal word under GHS classification. Molekula supplies Nitrilotriacetic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — £69.30 per pack ex VAT · £83.16 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
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Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Melting Point | 240°C - 245°C |
| Identification | (FTIR) Conforms to reference |
| Purity | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Melting Point | 242 °C dec |
| Water Solubility | 59.1 g/L at 25 °C |
| Solubility (other solvents) | Slightly soluble in DMSO-d6; soluble in ethanol |
| Vapour Pressure | 0.00000001 mmHg |
Source: PubChem CID 8758 (HSDB, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 31172055 |
| CAS Number | 139-13-9 |
| IUPAC Name | 2-[bis(carboxymethyl)amino]acetic acid |
| EC Number | 205-355-7 |
| Molecular Formula | N(CH2COOH)3 |
| Molecular Weight | 191.14 |
| Exact Mass | 191.043 |
| SMILES | C(C(=O)O)N(CC(=O)O)CC(=O)O |
| InChIKey | MGFYIUFZLHCRTH-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H9NO6/c8-4(9)1-7(2-5(10)11)3-6(12)13/h1-3H2,(H,8,9)(H,10,11)(H,12,13) |
| PubChem CID | 8758 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29224949 |
| Tariff Code | 2922498590 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H319 Causes serious eye irritation
- H351 Suspected of causing cancer
Precautionary statements
- P201 Obtain special instructions before use
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 2-[bis(carboxymethyl)amino]acetic acid
- Aminotriacetic acid
- Hampshire NTA acid
- Komplexon I
- N,N-Bis(carboxymethyl)glycine
- Nitriloacetate
- Titriplex I
- Triglycollamic acid
- Trilon A
- Versene NTA acid
Frequently asked questions
What is Nitrilotriacetic acid (NTA) commonly used for?
Nitrilotriacetic acid is primarily used as a chelating agent in detergents, water treatment, and industrial cleaning to bind metal ions like calcium and magnesium.
What is the chemical formula and molecular weight of Nitrilotriacetic acid?
The chemical formula is **N(CH₂COOH)₃**, and the molecular weight is **191.14 g/mol**.
How should Nitrilotriacetic acid be stored?
Store in a cool, dry place at ambient temperature, away from incompatible substances, and ensure containers are tightly sealed.
What grades of Nitrilotriacetic acid does Molekula supply?
Molekula supplies **technical grade** Nitrilotriacetic acid, suitable for industrial applications requiring high purity.
Can Molekula supply Nitrilotriacetic acid in bulk quantities?
Yes, we offer bulk packaging options for Nitrilotriacetic acid, with quantities tailored to meet your production needs.
What documentation is provided with an order of Nitrilotriacetic acid?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.