N,N,N',N'-Tetramethyl-1,8-naphthalenediamine
Also known as: 1,8-Bis(dimethylamino)naphthalene, N,N,N',N'-Tetramethyl-1,8-naphthalenediamine, Proton-sponge, DMAN, 1,8-Naphthalenediamine, N,N,N',N'-tetramethyl-, N1,N1,N8,N8-tetramethylnaphthalene-1,8-diamine, N,N,N',N'-Tetramethyl-1,8-diaminonaphthalene, N,N,N',N'-Tetramethyl-1,8-naphthalene diamine, Proton sponge, PROTON SPONGE
N,N,N',N'-Tetramethyl-1,8-naphthalenediamine (CAS 20734-58-1) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C14H18N2 and a molecular weight of 214.306 g/mol. Key properties include a melting point of 49-51 °C(lit.), a boiling point of 304.4±22.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 128.3±10.2 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, 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.
- 20734-58-1
- Jingsj CID
- J-1398872-2
- Molecular Formula
- C14H18N2
- Molecular Weight
- 214.306 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 49-51 °C(lit.) |
|---|---|
| Boiling Point | 304.4±22.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 128.3±10.2 °C |
| Exact Mass | 214.147003 |
| PSA | 6.48000 |
| LogP | 3.67 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.649 |
| Additional Property | insoluble |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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,N',N'-Tetramethyl-1,8-naphthalenediamine?
The CAS number of N,N,N',N'-Tetramethyl-1,8-naphthalenediamine is 20734-58-1.
What are the molecular formula and molecular weight of N,N,N',N'-Tetramethyl-1,8-naphthalenediamine?
N,N,N',N'-Tetramethyl-1,8-naphthalenediamine has molecular formula C14H18N2 and molecular weight 214.306 g/mol.
Is N,N,N',N'-Tetramethyl-1,8-naphthalenediamine hazardous?
N,N,N',N'-Tetramethyl-1,8-naphthalenediamine has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of N,N,N',N'-Tetramethyl-1,8-naphthalenediamine?
For N,N,N',N'-Tetramethyl-1,8-naphthalenediamine, Upstream Products: Dimethyl sulfate, 1,8-Diaminonaphthalene, iodomethane; Downstream Products: 4-Methoxybenzhydrol, 2-Methoxy-5-(trifluoromethyl)phenyl isocyanate.
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,N',N'-Tetramethyl-1,8-naphthalenediamine (CAS 20734-58-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1398872-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.