![Molecular structure of [1,2,4]Triazolo[1,5-a]pyrimidine (CAS 275-02-5)](/images/chem_structures_svg/147/275-02-5.svg)
[1,2,4]Triazolo[1,5-a]pyrimidine
Also known as: 1,2,4-Triazolo[1,5-a]pyrimidine, 1,2,4-Triazolo[1,5-a]pyrimidine 98%, 1,2,4-Triazolo(1,5-a)pyrimidine, MFCD00013332, Triazolo[1,5-a]pyrimidine
[1,2,4]Triazolo[1,5-a]pyrimidine (CAS 275-02-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N4 and a molecular weight of 120.11200 g/mol. Key properties include a melting point of 142-145ºC(lit.) and a density of 1.48g/cm3. 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.
- 275-02-5
- Jingsj CID
- J-17039-8
- Molecular Formula
- C5H4N4
- Molecular Weight
- 120.11200 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 142-145ºC(lit.) |
|---|---|
| Density | 1.48g/cm3 |
| Exact Mass | 120.04400 |
| PSA | 43.08000 |
| LogP | 0.12430 |
| Refractive Index | 1.772 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 [1,2,4]Triazolo[1,5-a]pyrimidine?
The CAS number of [1,2,4]Triazolo[1,5-a]pyrimidine is 275-02-5.
What are the molecular formula and molecular weight of [1,2,4]Triazolo[1,5-a]pyrimidine?
[1,2,4]Triazolo[1,5-a]pyrimidine has molecular formula C5H4N4 and molecular weight 120.11200 g/mol.
Is [1,2,4]Triazolo[1,5-a]pyrimidine hazardous?
[1,2,4]Triazolo[1,5-a]pyrimidine 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 [1,2,4]Triazolo[1,5-a]pyrimidine?
For [1,2,4]Triazolo[1,5-a]pyrimidine, Upstream Products: Amitrole, 1,1,3,3-Tetraethoxypropane, 3-Dimethylaminoacrolein.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "[1,2,4]Triazolo[1,5-a]pyrimidine (CAS 275-02-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17039-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.