1,3,5-Triazine
Also known as: s-Triazine, sym-Triazine, Cyanidine, 5-Azapyrimidine, 1,3,5-Triazine, 2,4,6-Triazine, MelaminePure, Vedita 250, cyclo-(hydrogen cyanide)3
1,3,5-Triazine (CAS 290-87-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H3N3 and a molecular weight of 81.076 g/mol. Key properties include a melting point of 77-83 °C (dec.)(lit.), a boiling point of 114.0±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 31.1±11.7 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 290-87-9
- Jingsj CID
- J-46718-5
- Molecular Formula
- C3H3N3
- Molecular Weight
- 81.076 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 77-83 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 114.0±9.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 31.1±11.7 °C |
| Exact Mass | 81.032700 |
| PSA | 38.67000 |
| LogP | -0.73 |
| Vapor Pressure | 24.0±0.2 mmHg at 25°C |
| Refractive Index | 1.506 |
| Additional Property | methanol: 0.1 g/mL, clear |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933699090 |
|---|---|
| Summary | 2933699090 other compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 1,3,5-Triazine?
The CAS number of 1,3,5-Triazine is 290-87-9.
What are the molecular formula and molecular weight of 1,3,5-Triazine?
1,3,5-Triazine has molecular formula C3H3N3 and molecular weight 81.076 g/mol.
Is 1,3,5-Triazine hazardous?
1,3,5-Triazine has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H318 — Causes serious eye damage.
What are the upstream and downstream products of 1,3,5-Triazine?
For 1,3,5-Triazine, Upstream Products: Formaldehyde, Formamidine hydrochloride, Phenyl phenylphosphoramidochloridate; Downstream Products: Biochanin A, 5,7-Difluoroquinazolin-4(3H)-one, Formononetin.
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-Triazine (CAS 290-87-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46718-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.