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2,2,6,6-Tetramethyl-3,5-heptanedione

Also known as: Dipivaloylmethane, DPM, 2,2,6,6-Tetramethylheptane-3,5-dione, TMHD, 2,2,6,6-Tetramethyl-5-heptanedione, 3,5-Heptanedione, 2,2,6,6-tetramethyl-, Dipivaloylmethane, 98%

2,2,6,6-Tetramethyl-3,5-heptanedione (CAS 1118-71-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H20O2 and a molecular weight of 184.28 g/mol. Key properties include a melting point of 19 °C, a boiling point of 202.8±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 67.2±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1118-71-4
Jingsj CID
J-16003-0
Molecular Formula
C11H20O2
Molecular Weight
184.28 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point19 °C
Boiling Point202.8±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point67.2±0.0 °C
Exact Mass184.146332
PSA34.14000
LogP2.80
Vapor Pressure0.3±0.4 mmHg at 25°C
Refractive Index1.432

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

Customs & Trade Information

HS Code2914190090
Summary2914190090 other acyclic ketones without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,2,6,6-Tetramethyl-3,5-heptanedione?

The CAS number of 2,2,6,6-Tetramethyl-3,5-heptanedione is 1118-71-4.

What are the molecular formula and molecular weight of 2,2,6,6-Tetramethyl-3,5-heptanedione?

2,2,6,6-Tetramethyl-3,5-heptanedione has molecular formula C11H20O2 and molecular weight 184.28 g/mol.

Is 2,2,6,6-Tetramethyl-3,5-heptanedione hazardous?

2,2,6,6-Tetramethyl-3,5-heptanedione has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of 2,2,6,6-Tetramethyl-3,5-heptanedione?

For 2,2,6,6-Tetramethyl-3,5-heptanedione, Upstream Products: Pinacolone, Methyl pivalate, Pivaloyl chloride; Downstream Products: Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)ruthenium(III), 4-Chlorobenzyl alcohol, Xanthone.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,2,6,6-Tetramethyl-3,5-heptanedione (CAS 1118-71-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16003-0 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.