1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene
1,3-二均三甲苯基咪唑-2-亚基
Also known as: 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene, min. 98%, 1,3-Bis(2,4,6-trimethylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene, 1,3-Dimesitylimidazol-2-ylidene, IMes, 1,3-Dimesityl-1H-imidazol-3-ium-2-ide, 1,3-bis(2,4,6-trimethylphenyl)-2H-imidazol-1-ium-2-ide
1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (CAS 141556-42-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C21H24N2 and a molecular weight of 304.42900 g/mol. It is also known as 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene, min. 98%, 1,3-Bis(2,4,6-trimethylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene and 1,3-Dimesitylimidazol-2-ylidene. Key properties include a melting point of 140ºC, a boiling point of 442.706ºC at 760 mmHg and a flash point of 199.09ºC. It is classified under GHS with signal word Warning and hazard statements H228, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 141556-42-5
- Jingsj CID
- J-42345-8
- Molecular Formula
- C21H24N2
- Chinese Name
- 1,3-二均三甲苯基咪唑-2-亚基
- Molecular Weight
- 304.42900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 140ºC |
|---|---|
| Boiling Point | 442.706ºC at 760 mmHg |
| Flash Point | 199.09ºC |
| Exact Mass | 304.19400 |
| PSA | 6.48000 |
| LogP | 5.17470 |
| Appearance | Powder | white to off-white |
| Vapor Pressure | 0mmHg at 25°C |
GHS Safety & Compliance
- H228
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene?
The CAS number of 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene is 141556-42-5.
What are the molecular formula and molecular weight of 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene?
1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene has molecular formula C21H24N2 and molecular weight 304.42900 g/mol.
Is 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene hazardous?
1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene has GHS signal word Warning and hazard statements H228; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene?
For 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene, Upstream Products: 1,3-Bis(2,4,6-trimethylphenyl)imidazolium chloride.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (CAS 141556-42-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42345-8 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.