Dimethylmalonyl dichloride
Also known as: 2,2-dimethylpropanedioyl dichloride, Dimethylmalonyl chloride, 2,2-dimethylmalonyl dichloride, Dimethylmalonic acid dichloride
Dimethylmalonyl dichloride (CAS 5659-93-8) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H6Cl2O2 and a molecular weight of 169.00600 g/mol. Key properties include a boiling point of 60ºC10 mm Hg(lit.), a density of 1.278 g/mL at 25ºC(lit.) and a flash point of 51.7 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 5659-93-8
- Jingsj CID
- J-36366-6
- Molecular Formula
- C5H6Cl2O2
- Molecular Weight
- 169.00600 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 60ºC10 mm Hg(lit.) |
|---|---|
| Density | 1.278 g/mL at 25ºC(lit.) |
| Flash Point | 51.7 °C |
| Exact Mass | 167.97400 |
| PSA | 34.14000 |
| LogP | 1.54340 |
| Refractive Index | n20/D 1.451(lit.) |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2917190090 |
|---|---|
| Summary | 2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Dimethylmalonyl dichloride?
The CAS number of Dimethylmalonyl dichloride is 5659-93-8.
What are the molecular formula and molecular weight of Dimethylmalonyl dichloride?
Dimethylmalonyl dichloride has molecular formula C5H6Cl2O2 and molecular weight 169.00600 g/mol.
Is Dimethylmalonyl dichloride hazardous?
Dimethylmalonyl dichloride has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Dimethylmalonyl dichloride?
For Dimethylmalonyl dichloride, Upstream Products: 2,2-Dimethylmalonic acid, Isobutyryl chloride, Diphosgene; Downstream Products: Dimethyl 2,2-dimethylmalonate, 2,2-Dimethylmalonic acid, 2-Methyl(2-2H)propanoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Dimethylmalonyl dichloride (CAS 5659-93-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36366-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.