Molekula
Imidazole x-tra pure
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
Imidazole x-tra pure is a five-membered heterocyclic organic compound containing two nitrogen atoms, widely used as a solvent, catalyst, and intermediate in pharmaceuticals, agrochemicals, and corrosion inhibitors. It appears as a colorless to slightly yellow hygroscopic solid with a mild ammonia-like odor. This extra-pure grade of imidazole has a CAS number of 288-32-4, molecular formula C3H4N2, and a molecular weight of 68.08 g/mol. It is stable at ambient storage conditions but requires careful handling due to its hazardous nature, indicated by the signal word "Danger." Molekula supplies Imidazole x-tra pure 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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500 g — £60.00 per pack ex VAT · £72.00 inc. VAT
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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 |
| Melting Point | 87 - 91℃ |
| Water | ≤0.2% |
| Assay (GC) | ≥99.6% |
| FT-IR | Conforms to structure |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 145 °C |
| Transport Class | 8 |
| Packing Group | III |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless crystals |
| Odour | Amine-like odor |
| Melting Point | 90.5 °C |
| Boiling Point | 257 °C |
| Density | 1.03 (relative, water = 1) |
| Water Solubility | 663 g/L at 20 °C |
| Solubility (other solvents) | Very soluble in ethanol; soluble in diethyl ether, acetone, pyridine; slightly soluble in benzene |
| Vapour Pressure | 0.3 Pa at 20 °C |
| Refractive Index | 1.4801 |
| pKa | pKa = 6.95 (at 25 °C) |
| log P (octanol/water) | -0.08 |
Source: PubChem CID 795 (HSDB, DrugBank, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90030782 |
| CAS Number | 288-32-4 |
| IUPAC Name | 1H-imidazole |
| EC Number | 206-019-2 |
| Molecular Formula | C3H4N2 |
| Molecular Weight | 68.08 |
| Exact Mass | 68.0374 |
| SMILES | C1=CN=CN1 |
| InChIKey | RAXXELZNTBOGNW-UHFFFAOYSA-N |
| InChI | InChI=1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5) |
| PubChem CID | 795 |
| UN Number | UN3263 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2933296000 |
| Tariff Code | 2933299090 |
Safety & GHS
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Corrosive
GHS05
-
Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H314 (sub cat. 1C) Causes severe skin burns and eye damage
- H360D May harm the unborn child
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- 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
- 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
- 1,3-Diaza-2,4-cyclopentadiene
- 1,3-Diazole
- 1H-Imidazole
- Glyoxalin
- Glyoxaline
- Imidazol
- imidazole
- Iminazole
- Imutex
- Miazole
Frequently asked questions
What is imidazole used for?
Imidazole is commonly used as a base catalyst in organic synthesis, a corrosion inhibitor, and in the production of agrochemicals, pharmaceuticals (e.g., histamine derivatives), and polymers.
What is the molecular formula and molecular weight of imidazole?
The molecular formula is **C₃H₄N₂**, and the molecular weight is **68.08 g/mol**.
What is the storage recommendation for imidazole x-tra pure?
Store at **ambient temperature** in a well-ventilated area, away from incompatible substances like strong oxidizers.
What grade of imidazole does Molekula supply, and is this x-tra pure?
Molekula supplies **imidazole x-tra pure**, which meets stringent purity standards (typically ≥99.5%) for high-performance applications.
Can Molekula supply imidazole in bulk quantities?
Yes, Molekula can supply imidazole in bulk, with flexible packaging options (drums, bags, or bulk containers) based on order volume.
What documentation comes with an order of imidazole x-tra pure?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
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.