N,N-Dimethyl-1,4-benzenediamine
Also known as: N,N-Dimethyl-p-phenylenediamine, N,N-Dimethyl-1,4-phenylenediamine, 4-Amino-N,N-dimethylaniline, 4-Dimethylaminoaniline, Dimethyl-p-phenylenediamine, Wurster's Red
N,N-Dimethyl-1,4-benzenediamine (CAS 99-98-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C8H12N2 and a molecular weight of 136.194 g/mol. Key properties include a melting point of 34-36 °C(lit.), a boiling point of 262.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 90.6±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 99-98-9
- Jingsj CID
- J-8253-1
- Molecular Formula
- C8H12N2
- Molecular Weight
- 136.194 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 34-36 °C(lit.) |
|---|---|
| Boiling Point | 262.0±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 90.6±0.0 °C |
| Exact Mass | 136.100052 |
| PSA | 29.26000 |
| LogP | 0.75 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.607 |
| Additional Property | 11 g/L (20 ºC) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
Customs & Trade Information
| HS Code | 2921590090 |
|---|---|
| Summary | 2921590090. other aromatic polyamines and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of N,N-Dimethyl-1,4-benzenediamine?
The CAS number of N,N-Dimethyl-1,4-benzenediamine is 99-98-9.
What are the molecular formula and molecular weight of N,N-Dimethyl-1,4-benzenediamine?
N,N-Dimethyl-1,4-benzenediamine has molecular formula C8H12N2 and molecular weight 136.194 g/mol.
Is N,N-Dimethyl-1,4-benzenediamine hazardous?
N,N-Dimethyl-1,4-benzenediamine has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.
What are the upstream and downstream products of N,N-Dimethyl-1,4-benzenediamine?
For N,N-Dimethyl-1,4-benzenediamine, Upstream Products: N,N-Dimethyl-4-nitroaniline, N,N-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline, 4-Bromo-N,N-dimethylaniline; Downstream Products: N,N,2-trimethylquinolin-6-amine, N,N-Dimethylindoaniline, Benzaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "N,N-Dimethyl-1,4-benzenediamine (CAS 99-98-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8253-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.