Molekula
Imidazole USP RS
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 USP RS is a heterocyclic organic compound widely used as a pharmaceutical intermediate, corrosion inhibitor, and catalyst in chemical synthesis. It appears as a white crystalline solid with a mild odor, essential in drug formulations like antifungals and as a pH buffer in cosmetics. Catalogue details: CAS 288-32-4, molecular formula C3H4N2, molecular weight 68.08. Store at ambient conditions. Signal word: Danger (hazardous—handle with care). Molekula supplies Imidazole USP RS 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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 | solid |
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 | 90032704 |
| 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
-
Corrosive
GHS05
-
Health Hazard
GHS07
-
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 USP RS commonly used for?
Imidazole USP RS is primarily used as a pharmaceutical intermediate, buffer in biochemistry, and in the synthesis of agrochemicals, including fungicides like imazalil.
What is the chemical formula and molecular weight of Imidazole USP RS?
The chemical formula is **C₃H₄N₂**, and the molecular weight is **68.08 g/mol**.
How should Imidazole USP RS be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture and incompatible materials.
What grades of Imidazole are available from Molekula?
Molekula supplies **Imidazole USP RS** (United States Pharmacopeia Reference Standard grade) for pharmaceutical and high-purity applications.
Can Molekula supply Imidazole USP RS in bulk quantities?
Yes, Molekula can provide Imidazole USP RS in bulk, with quantities tailored to your requirements—contact us for specific pricing and lead times.
What documentation comes with an order of Imidazole USP RS?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** confirming USP RS compliance.
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.