Molekula
Ammonium citrate
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
Ammonium citrate is a white crystalline powder used as a buffering agent, chelating agent, and in pharmaceutical and food applications. It is soluble in water and stable under ambient storage conditions. CAS: 3458-72-8, Molecular Formula: C6H17N3O7, Molecular Weight: 243.22 g/mol, Signal Word: Warning. Molekula supplies ammonium 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
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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100 g — $79.50 per pack
Need a different quantity or pack?
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 to Off-white powder |
| Assay | ≥97% |
| Identification (IR) | Conforms to Reference |
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 | 78832124 |
| 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
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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.
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 ammonium citrate used for?
Ammonium citrate is commonly used as a buffering agent in pharmaceuticals and as a chelating agent in cleaning formulations.
What is the chemical formula and molecular weight of ammonium citrate?
The formula is C6H17N3O7 with a molecular weight of 243.22 g/mol.
How should ammonium citrate be stored?
Store at ambient temperature, protected from moisture and heat.
What grade is available for ammonium citrate?
Available in reagent grade; other grades may be available upon request.
Can Molekula supply ammonium citrate in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with an order of ammonium citrate?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
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.