1,3,5-trioxane
Also known as: s-trioxane, trioxymethylene, metaformaldehyde, triformol, 1,3,5-trioxacyclohexane, sym-trioxane, formaldehyde trimer
1,3,5-trioxane (CAS 110-88-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H6O3 and a molecular weight of 90.078 g/mol. Key properties include a melting point of 59-62 °C(lit.), a boiling point of 114.5±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 45.0±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H228 and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 110-88-3
- Jingsj CID
- J-3605-5
- Molecular Formula
- C3H6O3
- Molecular Weight
- 90.078 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 59-62 °C(lit.) |
|---|---|
| Boiling Point | 114.5±0.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 45.0±0.0 °C |
| Exact Mass | 90.031693 |
| PSA | 27.69000 |
| LogP | -0.62 |
| Vapor Pressure | 23.5±0.2 mmHg at 25°C |
| Refractive Index | 1.385 |
| Additional Property | 221 g/L (25 ºC) |
GHS Safety & Compliance
- H228
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. 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 1,3,5-trioxane?
The CAS number of 1,3,5-trioxane is 110-88-3.
What are the molecular formula and molecular weight of 1,3,5-trioxane?
1,3,5-trioxane has molecular formula C3H6O3 and molecular weight 90.078 g/mol.
Is 1,3,5-trioxane hazardous?
1,3,5-trioxane has GHS signal word Danger and hazard statements H228; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 1,3,5-trioxane?
For 1,3,5-trioxane, Upstream Products: Formaldehyde, Methanol, 2-Acetylcyclopentanone; Downstream Products: N,3-Dimethylbutan-1-amine, Benzyl chloromethyl ether, 1,3-Dioxolane-4-methanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3,5-trioxane (CAS 110-88-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3605-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.