![Molecular structure of 1,3,5-Tris[(3-methylphenyl)phenylamino]benzene (CAS 138143-23-4)](/images/chem_structures_svg/147/138143-23-4.svg)
1,3,5-Tris[(3-methylphenyl)phenylamino]benzene
Also known as: N1,N3,N5-triphenyl-N1,N3,N5-tri-m-tolylbenzene-1,3,5-triamine, 1,3,5-Benzenetriamine, N1,N3,N5-tris(3-methylphenyl)-N1,N3,N5-triphenyl-, N,N',N''-Tris(3-methylphenyl)-N,N',N''-triphenyl-1,3,5-benzenetriamine, m-MTDAB, Tris[(3-methylphenyl)phenylamino]benzene
1,3,5-Tris[(3-methylphenyl)phenylamino]benzene (CAS 138143-23-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C45H39N3 and a molecular weight of 621.81100 g/mol. Key properties include a melting point of 183-185ºC, a boiling point of 753.1ºC at 760 mmHg, a density of 1.169 and a flash point of 412.6ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 138143-23-4
- Jingsj CID
- J-1154840-6
- Molecular Formula
- C45H39N3
- Molecular Weight
- 621.81100 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 183-185ºC |
|---|---|
| Boiling Point | 753.1ºC at 760 mmHg |
| Density | 1.169 |
| Flash Point | 412.6ºC |
| Exact Mass | 621.31400 |
| PSA | 9.72000 |
| LogP | 13.02120 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of 1,3,5-Tris[(3-methylphenyl)phenylamino]benzene?
The CAS number of 1,3,5-Tris[(3-methylphenyl)phenylamino]benzene is 138143-23-4.
What are the molecular formula and molecular weight of 1,3,5-Tris[(3-methylphenyl)phenylamino]benzene?
1,3,5-Tris[(3-methylphenyl)phenylamino]benzene has molecular formula C45H39N3 and molecular weight 621.81100 g/mol.
Is 1,3,5-Tris[(3-methylphenyl)phenylamino]benzene hazardous?
1,3,5-Tris[(3-methylphenyl)phenylamino]benzene has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 1,3,5-Tris[(3-methylphenyl)phenylamino]benzene?
For 1,3,5-Tris[(3-methylphenyl)phenylamino]benzene, Upstream Products: 3-Iodotoluene, N,N',N''-Triphenyl-1,3,5-benzenetriamine, 1,3,5-Tribromobenzene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3,5-Tris[(3-methylphenyl)phenylamino]benzene (CAS 138143-23-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1154840-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.