4,5-Dimethyl-1H-imidazol-2(3H)-one

Also known as: 1,3-Dihydro-4,5-dimethyl-2H-imidazol-2-one, 2H-IMidazol-2-one,1,3-dihydro-4,5-diMethyl-, 4,5-DIMETHYL-1,3-DIHYDRO-2H-IMIDAZOL-2-ONE, 4,5-DIMETHYL-1,3-DIHYDRO-IMIDAZOL-2-ONE, 4,5-DIMETHYL-2,3-DIHYDRO-IMIDAZOL-2-ONE, 4,5-DiMethyl-1H-iMidazol-2(3H)-one, 4,5-Dimethyl-1,3-dihydro-imidazol-2-on, 4,5-Dimethyl-1H-imidazol-2(3H), 4,5-Dimethyl-imidazolin-2-on, 4,5-dimethyl-1,3-dihydro-2H-imidazol-2-one, 4,5-dimethyl-1,3-dihydro-imidazol-2-one, 4,5-dimethyl-1,3-dihydroimidazol-2-one, 4,5-dimethyl-2-imidazolinone, 4,5-dimethyl-4-imidazolin-2-one, 4,5-dimethylimidazolin-2-one, HMS1733G12

4,5-Dimethyl-1H-imidazol-2(3H)-one (CAS 1072-89-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8N2O and a molecular weight of 112.13000 g/mol. Key property: a density of 1.052 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1072-89-5
Jingsj CID: J-18141-9
Molecular Formula: C₅H₈N₂O
Molecular Weight: 112.13000 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.052 g/cm3
Exact Mass	112.06400
PSA	48.65000
LogP	0.31980

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 4,5-Dimethyl-1H-imidazol-2(3H)-one?

The CAS number of 4,5-Dimethyl-1H-imidazol-2(3H)-one is 1072-89-5.

What are the molecular formula and molecular weight of 4,5-Dimethyl-1H-imidazol-2(3H)-one?

4,5-Dimethyl-1H-imidazol-2(3H)-one has molecular formula C5H8N2O and molecular weight 112.13000 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,5-Dimethyl-1H-imidazol-2(3H)-one (CAS 1072-89-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18141-9 (accessed 2026-11-09).

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