Molekula
Triammonium citrate (Gen)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Triammonium citrate (CAS 3458-72-8) is a water-soluble ammonium salt of citric acid, widely used as a chelating agent, pH buffer, and humectant in food, pharmaceuticals, and industrial formulations. It is also used in fertilizers and soil amendments, and as a food emulsifier. It prevents metal ion interference in reactions, stabilizes emulsions, and enhances moisture retention. Catalogue details: Molecular formula C6H17N3O7, molecular weight 243.22 g/mol, white crystalline powder, soluble in water, store at ambient conditions. Signal word: Warning (may cause skin/eye irritation). Molekula supplies triammonium citrate 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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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.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Assay | ≥97.0% |
| Lead (Pb) | ≤2 ppm |
| Mercury (Hg) | ≤1 ppm |
| Identification (IR) | Conforms to reference |
| Arsenic (As) | ≤3 ppm |
| Oxalate (Oxalic acid) | ≤0.04% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Water Solubility | Freely soluble in water |
Source: PubChem CID 18954 (EU Food Improvement Agents)
Identification
| Property | Value |
|---|---|
| SKU | 90038220 |
| CAS Number | 3458-72-8 |
| IUPAC Name | triazanium;2-hydroxypropane-1,2,3-tricarboxylate |
| EC Number | 222-394-5 |
| Molecular Formula | C6H17N3O7 |
| Molecular Weight | 243.22 |
| Exact Mass | 243.1066 |
| SMILES | C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.[NH4+].[NH4+].[NH4+] |
| InChIKey | YWYZEGXAUVWDED-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H8O7.3H3N/c7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);3*1H3 |
| PubChem CID | 18954 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29181550 |
| Tariff Code | 2918150090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing 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
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, ammonium salt (1:3)
- 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, triammonium salt
- 2-Hydroxy-1,2,3-propanetricarboxylic acid triammonium salt
- Ammonium citrate (3:1)
- Ammonium citrate tribasic
- Citric acid triammonium salt
- INS NO.380
- tri(azaniumyl) 2-hydroxypropane-1,2,3-tricarboxylate
- triammonium 2-hydroxypropane-1,2,3-tricarboxylate
- Triammonium citrate
Frequently asked questions
What is triammonium citrate commonly used for?
Triammonium citrate is primarily used as a buffering agent in pharmaceuticals, food and beverage formulations, and as a chelating agent in industrial applications.
What is the chemical formula and molecular weight of triammonium citrate?
The chemical formula is **C6H17N3O7** and the molecular weight is **243.22 g/mol**.
How should triammonium citrate be stored?
Store in a cool, dry place at ambient temperature, away from incompatible substances.
What grades of triammonium citrate does Molekula supply?
Molekula supplies triammonium citrate in **general-purpose (Gen) grade**, suitable for industrial and laboratory applications.
Can Molekula supply triammonium citrate in bulk quantities?
Yes, Molekula can supply triammonium citrate in bulk, with quantities tailored to customer requirements.
What documentation comes with an order of triammonium citrate?
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.