Bis(trimethylsilyl) malonate
Also known as: Malonic acid bis(trimethylsilyl) ester, Propanedioic acid, bis(trimethylsilyl) ester, bis(trimethylsilyl) propanedioate, MFCD00009631, EINECS 242-342-5, Malonic acid bis-TMS, Malonic acid, di(trimethylsilyl) ester, Malonic acid (tms)
Bis(trimethylsilyl) malonate (CAS 18457-04-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H20O4Si2 and a molecular weight of 248.424 g/mol. Key properties include a boiling point of 232.6±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 65.3±15.4 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18457-04-0
- Jingsj CID
- J-40840-2
- Molecular Formula
- C9H20O4Si2
- Molecular Weight
- 248.424 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 232.6±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 65.3±15.4 °C |
| Exact Mass | 248.090012 |
| PSA | 52.60000 |
| LogP | 2.39 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.420 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Bis(trimethylsilyl) malonate?
The CAS number of Bis(trimethylsilyl) malonate is 18457-04-0.
What are the molecular formula and molecular weight of Bis(trimethylsilyl) malonate?
Bis(trimethylsilyl) malonate has molecular formula C9H20O4Si2 and molecular weight 248.424 g/mol.
Is Bis(trimethylsilyl) malonate hazardous?
Bis(trimethylsilyl) malonate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
What are the upstream and downstream products of Bis(trimethylsilyl) malonate?
For Bis(trimethylsilyl) malonate, Upstream Products: Chlorotrimethylsilane, Malonic acid, 2-(Trimethylsilyl)ethanol; Downstream Products: 3-Methyl-2-butanone, Pinacolone, 2-Nonanone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Bis(trimethylsilyl) malonate (CAS 18457-04-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40840-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.