Molekula
Ninhydrin reagent, 2% solution
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
Ninhydrin reagent, a 2% solution in ethanol or another suitable solvent, is a chemical used primarily for detecting amino acids, proteins, and fingerprints through its reaction to produce a characteristic purple or blue color. This reagent is widely applied in forensic analysis, biochemistry, and analytical chemistry for qualitative and quantitative assays. Ninhydrin reagent, 2% solution, has a CAS number of 485-47-2, a molecular formula of C9H6O4, and a molecular weight of 178.14. It must be stored between 2 to 8°C and carries a signal word of Warning due to its moderate hazard potential. Molekula supplies Ninhydrin 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.
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100 mL — £77.90 per pack ex VAT · £93.48 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Dark purple liquid |
| Assay (Mass Balance) | 1.9-2.1 % (w/v) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90027851 |
| CAS Number | 485-47-2 |
| IUPAC Name | 2,2-dihydroxyindene-1,3-dione |
| EC Number | 207-618-1 |
| Molecular Formula | C9H6O4 |
| Molecular Weight | 178.14 |
| Exact Mass | 178.0266 |
| SMILES | C1=CC=C2C(=C1)C(=O)C(C2=O)(O)O |
| InChIKey | FEMOMIGRRWSMCU-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H6O4/c10-7-5-3-1-2-4-6(5)8(11)9(7,12)13/h1-4,12-13H |
| PubChem CID | 10236 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2914.50.3000 |
| Tariff Code | 2914500090 |
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
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in Bulgarian, English, English (US), 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
- 1,2,3-Indantrione monohydrate
- 1,2,3-Indantrione, 2-hydrate
- 1,3-Indandione, 2,2-dihydroxy-
- 1H-Indene-1,3(2H)-dione, 2,2-dihydroxy-
- 2,2-Dihydroxy-1,3-indandione
- 2,2-Dihydroxy-1,3-indanedione
- 2,2-Dihydroxy-1H-indene-1,3(2H)-dione
- NINHYDRIN
- Ninhydrin hydrate
- Triketohydrindene hydrate
Frequently asked questions
What is ninhydrin reagent (2% solution) used for?
This solution is primarily used for detecting amino acids, proteins, and fingerprints via the formation of a blue/purple complex (Ruhemann’s purple). It’s also employed in thin-layer chromatography (TLC) for visualizing amino acid spots.
What is the chemical formula and molecular weight of ninhydrin?
The chemical formula is **C₉H₆O₄**, and the molecular weight is **178.14 g/mol**.
How should this 2% ninhydrin solution be stored?
Store at **2–8°C** in a tightly sealed container to prevent degradation or evaporation. Avoid exposure to light and moisture.
What grade or purity level is available for this ninhydrin solution?
This is a **reagent-grade solution** (2% w/v in ethanol or another solvent), suitable for analytical and forensic applications. Purity meets standard laboratory requirements for qualitative testing.
Can Molekula supply this ninhydrin solution in bulk quantities?
Yes, we can provide bulk quantities of this 2% ninhydrin solution upon request. Contact our sales team for pricing and lead times tailored to your volume needs.
What documentation comes with an order of this ninhydrin reagent?
Each order includes a **Certificate of Analysis (CoA)** detailing batch-specific purity, solvent composition, and safety data. A **Material Safety Data Sheet (MSDS)** is also provided, as the product carries a **‘Warning’ signal word** for handling precautions.
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