Dimethyldioctadecylammonium bromide
Also known as: Dioctadecyldimethylammonium bromide, Distearyldimethylammonium bromide, Dimethyldistearylammonium bromide, N,N-Dimethyl-N-octadecyl-1-octadecanaminium bromide, 18:0 DDAB, Dimethyl di-n-octadecylammonium bromide, dimethyl(dioctadecyl)azanium bromide, 1-Octadecanaminium, N,N-dimethyl-N-octadecyl-, bromide (1:1)
Dimethyldioctadecylammonium bromide (CAS 3700-67-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C38H80BrN and a molecular weight of 630.953 g/mol. Key properties include a melting point of ~160 °C and a density of 1.047. 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.
- 3700-67-2
- Jingsj CID
- J-1100190-2
- Molecular Formula
- C38H80BrN
- Molecular Weight
- 630.953 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | ~160 °C |
|---|---|
| Density | 1.047 |
| Exact Mass | 629.547424 |
| LogP | 10.58980 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2923900090 |
|---|---|
| Summary | 2923900090 other quaternary ammonium salts and hydroxides。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Dimethyldioctadecylammonium bromide?
The CAS number of Dimethyldioctadecylammonium bromide is 3700-67-2.
What are the molecular formula and molecular weight of Dimethyldioctadecylammonium bromide?
Dimethyldioctadecylammonium bromide has molecular formula C38H80BrN and molecular weight 630.953 g/mol.
Is Dimethyldioctadecylammonium bromide hazardous?
Dimethyldioctadecylammonium bromide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Dimethyldioctadecylammonium bromide (CAS 3700-67-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1100190-2 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.