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1H-Imidazole-4,5-dimethanol

Also known as: 4,5-Bis(hydroxymethyl)imidazole, 4,5-Bis(hydroxymethyl)-1H-imidazole, 4,5-Imidazoledimethanol, Imidazole-4,5-dimethanol, (1H-Imidazole-4,5-diyl)dimethanol, [4-(hydroxymethyl)-1H-imidazol-5-yl]methanol, [5-(hydroxymethyl)-1H-imidazol-4-yl]methanol

1H-Imidazole-4,5-dimethanol (CAS 33457-48-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8N2O2 and a molecular weight of 128.129 g/mol. Key properties include a melting point of 162 °C, a boiling point of 487.6±35.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 248.7±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
33457-48-6
Jingsj CID
J-35499-4
Molecular Formula
C5H8N2O2
Molecular Weight
128.129 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point162 °C
Boiling Point487.6±35.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point248.7±25.9 °C
Exact Mass128.058578
PSA69.14000
LogP-2.36
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.634

Customs & Trade Information

HS Code2933290090
Summary2933290090. 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 1H-Imidazole-4,5-dimethanol?

The CAS number of 1H-Imidazole-4,5-dimethanol is 33457-48-6.

What are the molecular formula and molecular weight of 1H-Imidazole-4,5-dimethanol?

1H-Imidazole-4,5-dimethanol has molecular formula C5H8N2O2 and molecular weight 128.129 g/mol.

What are the upstream and downstream products of 1H-Imidazole-4,5-dimethanol?

For 1H-Imidazole-4,5-dimethanol, Upstream Products: Dimethyl 4,5-imidazoledicarboxylate, [4-(Hydroxymethyl)-1-trityl-1H-imidazol-5-yl]methanol, Diethyl 1H-imidazole-4,5-dicarboxylate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1H-Imidazole-4,5-dimethanol (CAS 33457-48-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35499-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.