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Paraldehyde

Also known as: 2,4,6-Trimethyl-1,3,5-trioxane, Paracetaldehyde, Acetaldehyde trimer, Elaldehyde, PCHO, s-Trimethyltrioxymethylene, ALDEFRESH, FEMA 2003, Paral, Paraacetaldehyde, 2,4,6-Trimethyl-s-trioxane, 2,4,6-Trimethyl-1,3,5-trioxacyclohexane

Paraldehyde (CAS 123-63-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H12O3 and a molecular weight of 132.15800 g/mol. Key properties include a melting point of 12 °C, a boiling point of 65-82 °C, a density of 0.994 g/mL at 20 °C(lit.) and a flash point of -1.1 °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 Nov 2, 2026.

CAS No.
123-63-7
Jingsj CID
J-33627-1
Molecular Formula
C6H12O3
Molecular Weight
132.15800 g/mol
Category
Organic Compounds
Last updated
11/2/2026

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Physicochemical Properties

Melting Point12 °C
Boiling Point65-82 °C
Density0.994 g/mL at 20 °C(lit.)
Flash Point-1.1 °C
Exact Mass132.07900
PSA27.69000
LogP1.08780
Additional Property1.52 (vs air)
Vapor Pressure0.0544mmHg at 25°C
Refractive Indexn20/D 1.39
Additional Property125 g/L (25 ºC)

GHS Safety & Compliance

FlammableSignal word: Warning
  • H226 — Flammable liquid and vapour

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Paraldehyde?

The CAS number of Paraldehyde is 123-63-7.

What are the molecular formula and molecular weight of Paraldehyde?

Paraldehyde has molecular formula C6H12O3 and molecular weight 132.15800 g/mol.

Is Paraldehyde hazardous?

Paraldehyde has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.

What are the upstream and downstream products of Paraldehyde?

For Paraldehyde, Upstream Products: ch3cho, 3,3-Dimethyl-1-Butyne, Boron trifluoride diethyl etherate; Downstream Products: 2,6-di-tert-butyl-4-ethylphenol, 2,4-Di-tert-butylphenol, 3-Ethylpyridine.

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

Last updated:

How to cite: Jingsj. "Paraldehyde (CAS 123-63-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33627-1 (accessed 2026-11-07).

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