Molekula
Griess Reagent
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
Griess Reagent is a chemical used for the colorimetric detection of nitrite ions in aqueous samples, commonly employed in environmental and biological testing. This product is the single compound N-(1-naphthyl)ethylenediamine dihydrochloride, the coupling component of the Griess reaction: nitrite first reacts with sulfanilic acid (or sulfanilamide) to form a diazonium salt, which then couples with N-(1-naphthyl)ethylenediamine to produce a pink azo dye. CAS: 1465-25-4, Molecular Formula: C12H14N2·2HCl, Molecular Weight: 259.17 g/mol, Storage: Ambient, Signal Word: Warning. Molekula supplies Griess Reagent 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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5 g — £57.50 per pack ex VAT · £69.00 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 | Clear, colourless to light pink solution |
| Assay | 0.1% Naphthylethylenediamine dihydrochloride, 1% Sulphanilic acid in 5% Phosphoric acid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90027439 |
| CAS Number | 1465-25-4 |
| Molecular Formula | C12H14N2.2HCl |
| Molecular Weight | 259.17 |
| SMILES | C1=CC=C2C(=C1)C=CC=C2NCCN.Cl.Cl |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 38221900 |
| Tariff Code | 3822000000 |
Safety & GHS
Hazard statements
- EUH208 Contains sensitizing substance. May produce an allergic reaction.
- EUH210 Safety data sheet available on request.
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
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
No alternate names recorded for this product.
Frequently asked questions
What is Griess Reagent used for?
Griess Reagent is used for the colorimetric detection of nitrite ions in aqueous samples, commonly in environmental and biological testing.
What is the chemical formula and molecular weight of Griess Reagent?
The formula is C12H14N2·2HCl with a molecular weight of 259.17 g/mol.
How should Griess Reagent be stored?
Store at ambient temperature, protected from light and moisture.
What grade of Griess Reagent is available?
Available in analytical grade for laboratory use.
Can Molekula supply Griess Reagent in bulk?
Yes, Molekula can supply Griess Reagent in bulk quantities—please contact sales for details.
What documentation comes with a Griess Reagent order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS).
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.