Molekula
Cupferron
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
Cupferron is a chelating agent used in analytical chemistry for the selective precipitation and separation of metal ions, particularly iron and copper. It is also employed in the purification of rare earth elements. Available in powder form with a molecular weight of 155.15 g/mol, its chemical formula is C6H5N(NO)ONH4 and CAS number 135-20-6. Store at 2 to 8 °C. Hazardous: signal word Danger. Molekula supplies Cupferron 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.
-
100 g — £52.00 per pack ex VAT · £62.40 inc. VAT
-
1 kg — £288.00 per pack ex VAT · £345.60 inc. VAT
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 light brown crystalline powder |
| Identification | Conforms to reference |
| Solubility | Soluble in Water |
| Assay | ≥ 98.00% |
| Residue on Ignition | ≤0.1% |
| Shelf life | This product has a shelf life of 2 years from date of manufacture. The product is ideally stored at +4°C but can be transported out of this temperature without affecting the quality. The product can be guaranteed for 2 years taking into account the difference in temperature of 10 - 20°C. |
| Decomposition point | ca. 148°C |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Crystals |
| Melting Point | 163.5 °C |
| Water Solubility | Freely soluble in water |
| Solubility (other solvents) | Freely soluble in alcohol |
| Vapour Pressure | 0.0000629 mmHg |
Source: PubChem CID 2724103 (HSDB, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 19085697 |
| CAS Number | 135-20-6 |
| IUPAC Name | azanium N-oxido-N-phenylnitrous amide |
| Molecular Formula | C6H5N(NO)ONH4 |
| Molecular Weight | 155.15 |
| Exact Mass | 155.0695 |
| SMILES | C1=CC=C(C=C1)N(N=O)[O-].[NH4+] |
| InChIKey | GDEBSAWXIHEMNF-UHFFFAOYSA-O |
| InChI | InChI=1S/C6H5N2O2.H3N/c9-7-8(10)6-4-2-1-3-5-6;/h1-5H;1H3/q-1;/p+1 |
| PubChem CID | 2724103 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| Tariff Code | 2929909090 |
Safety & GHS
-
Toxic
GHS06
-
Serious Health Hazard
GHS08
Hazard statements
- H301 Toxic if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H341 Suspected of causing genetic defects
- H351 Suspected of causing cancer
Precautionary statements
- P201 Obtain special instructions before use
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- 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
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
- Ammonium cupferron
- Ammonium nitroso-beta-phenylhydroxylamine
- Ammonium-N-nitrosophenylhydroxylamine
- Cupferon
- Cupferron, ammonium salt
- Kupferon
- N-Nitroso-N-phenylhydroxylamine ammonium salt
- N-Nitrosofenylhydroxylamin amonny
- N-Nitrosophenylhydroxylamin ammonium salz
- N-Nitrosophenylhydroxylamine ammonium salt
Frequently asked questions
What is Cupferron used for?
Cupferron is primarily used as a chelating agent for the selective precipitation and separation of metal ions, especially iron and copper, in analytical chemistry.
What is the chemical formula and molecular weight of Cupferron?
The formula is C6H5N(NO)ONH4 with a molecular weight of 155.15 g/mol.
How should Cupferron be stored?
Cupferron should be stored at 2 to 8 °C to maintain stability and prevent degradation.
What grade of Cupferron is available?
Molekula supplies Cupferron in analytical grade, suitable for laboratory and research applications.
Can Molekula supply Cupferron in bulk?
Yes, Molekula can supply Cupferron in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a Cupferron order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with regulatory standards.
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.