2,5-Bis(octyloxy)terephthalaldehyde

Also known as: 2,5-dioctoxyterephthalaldehyde, 2,5-bis(octyloxy)benzene-1,4-dialdehyde, 2,5-dioctyloxy-1,4-diformylbenzene, 2,5-dioctyloxyterephthaldehyde, 2,5-bis(octyloxy)-1,4-benzenecarboxaldehyde

2,5-Bis(octyloxy)terephthalaldehyde (CAS 123440-34-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C24H38O4 and a molecular weight of 390.55600 g/mol. Key properties include a melting point of 76-79ºC(lit.), a boiling point of 529.2±50.0℃(Predicted) and a density of 0.996±0.06g/ml(Predicted). 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.: 123440-34-6
Jingsj CID: J-1134-7
Molecular Formula: C₂₄H₃₈O₄
Molecular Weight: 390.55600 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	76-79ºC(lit.)
Boiling Point	529.2±50.0℃(Predicted)
Density	0.996±0.06g/ml(Predicted)
Exact Mass	390.27700
PSA	52.60000
LogP	6.79020

GHS Safety & Compliance

IrritantSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Customs & Trade Information

HS Code	2912499000
Summary	2912499000. other aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function. 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 2,5-Bis(octyloxy)terephthalaldehyde?

The CAS number of 2,5-Bis(octyloxy)terephthalaldehyde is 123440-34-6.

What are the molecular formula and molecular weight of 2,5-Bis(octyloxy)terephthalaldehyde?

2,5-Bis(octyloxy)terephthalaldehyde has molecular formula C24H38O4 and molecular weight 390.55600 g/mol.

Is 2,5-Bis(octyloxy)terephthalaldehyde hazardous?

2,5-Bis(octyloxy)terephthalaldehyde has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 2,5-Bis(octyloxy)terephthalaldehyde?

For 2,5-Bis(octyloxy)terephthalaldehyde, Upstream Products: N,N-Dimethylformamide, 1,4-Bis(octyloxy)benzene.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2,5-Bis(octyloxy)terephthalaldehyde (CAS 123440-34-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1134-7 (accessed 2026-11-09).

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