Imidazole-4-acetic acid
Also known as: Imidazoleacetic acid, 2-(1H-imidazol-5-yl)acetic acid, 4-imidazolylacetic acid, 4-imidazoleacetic acid, 1H-imidazole-4-acetic acid, (1H-imidazol-4-yl)acetic acid, 2-(1H-imidazol-4-yl)acetic acid, 4(5)-Imidazoleacetate, 4-carboxymethyl-imidazole, imidazol-4-ylacetic acid
Imidazole-4-acetic acid (CAS 645-65-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O2 and a molecular weight of 126.11300 g/mol. Key properties include a melting point of 217-219 °C (decomp), a boiling point of 447.343ºC at 760 mmHg and a density of 1.426 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 645-65-8
- Jingsj CID
- J-1956369-0
- Molecular Formula
- C5H6N2O2
- Molecular Weight
- 126.11300 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 217-219 °C (decomp) |
|---|---|
| Boiling Point | 447.343ºC at 760 mmHg |
| Density | 1.426 g/cm3 |
| Exact Mass | 126.04300 |
| PSA | 65.98000 |
| LogP | 0.03680 |
| Storage Conditions | 2-8°C |
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Prell GD, et al. Imidazoleacetic acid-ribotide: an endogenous ligand that stimulates imidazol(in)e receptors. Proc Natl Acad Sci U S A. 2004 Sep 14;101(37):13677-82. |
Customs & Trade Information
| HS Code | 2933290090 |
|---|---|
| Summary | 2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Imidazole-4-acetic acid?
The CAS number of Imidazole-4-acetic acid is 645-65-8.
What are the molecular formula and molecular weight of Imidazole-4-acetic acid?
Imidazole-4-acetic acid has molecular formula C5H6N2O2 and molecular weight 126.11300 g/mol.
What are the upstream and downstream products of Imidazole-4-acetic acid?
For Imidazole-4-acetic acid, Upstream Products: 4(5)-Cyanomethylimidazole, trans-Urocanic acid, 2-(1H-Imidazol-4-yl)ethanol; Downstream Products: Methyl 2-(1H-imidazol-4-yl)acetate hydrochloride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Imidazole-4-acetic acid (CAS 645-65-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1956369-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.