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2,4,7,9-Tetramethyl-5-decyne-4,7-diol

2,4,7,9-四甲基-5-癸炔-4,7-二醇

Also known as: TMDD, 2,4,7,9-Tetramethyl-5-decyn-4,7-diol, 4,7-Dihydroxy-2,4,7,9-tetramethyl-5-decyne, Surfynol 104, Olfine AK 02, Surfynol TG, SURFYNOL 104E, SURFYNOL PG 50, PD 30, 1,4-diisobutyl-1,4-dimethylbutynediol, UNII:B9Y126NY8K

2,4,7,9-Tetramethyl-5-decyne-4,7-diol (CAS 126-86-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C14H26O2 and a molecular weight of 226.355 g/mol. It is also known as TMDD, 2,4,7,9-Tetramethyl-5-decyn-4,7-diol and 4,7-Dihydroxy-2,4,7,9-tetramethyl-5-decyne. Key properties include a melting point of 42-44 °C(lit.), a boiling point of 252.7±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 97.3±13.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
126-86-3
Jingsj CID
J-4233-2
Molecular Formula
C14H26O2
Chinese Name
2,4,7,9-四甲基-5-癸炔-4,7-二醇
Molecular Weight
226.355 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point42-44 °C(lit.)
Boiling Point252.7±8.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point97.3±13.0 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,4,7,9-Tetramethyl-5-decyne-4,7-diol?

The CAS number of 2,4,7,9-Tetramethyl-5-decyne-4,7-diol is 126-86-3.

What are the molecular formula and molecular weight of 2,4,7,9-Tetramethyl-5-decyne-4,7-diol?

2,4,7,9-Tetramethyl-5-decyne-4,7-diol has molecular formula C14H26O2 and molecular weight 226.355 g/mol.

Is 2,4,7,9-Tetramethyl-5-decyne-4,7-diol hazardous?

2,4,7,9-Tetramethyl-5-decyne-4,7-diol has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2,4,7,9-Tetramethyl-5-decyne-4,7-diol (CAS 126-86-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4233-2 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.