![Molecular structure of 1H-Pyrazolo[4,3-b]pyridine (CAS 272-52-6)](/images/chem_structures_svg/150/272-52-6.svg)
1H-Pyrazolo[4,3-b]pyridine
Also known as: 4-Aza-1H-indazole, Pyrazolo[4,3-b]pyridine
1H-Pyrazolo[4,3-b]pyridine (CAS 272-52-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5N3 and a molecular weight of 119.124 g/mol. Key properties include a boiling point of 294.5±13.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 145.7±12.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 272-52-6
- Jingsj CID
- J-1526163-9
- Molecular Formula
- C6H5N3
- Molecular Weight
- 119.124 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 294.5±13.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 145.7±12.8 °C |
| Exact Mass | 119.048347 |
| PSA | 41.57000 |
| LogP | 0.46 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.715 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
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 1H-Pyrazolo[4,3-b]pyridine?
The CAS number of 1H-Pyrazolo[4,3-b]pyridine is 272-52-6.
What are the molecular formula and molecular weight of 1H-Pyrazolo[4,3-b]pyridine?
1H-Pyrazolo[4,3-b]pyridine has molecular formula C6H5N3 and molecular weight 119.124 g/mol.
Is 1H-Pyrazolo[4,3-b]pyridine hazardous?
1H-Pyrazolo[4,3-b]pyridine has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
What are the upstream and downstream products of 1H-Pyrazolo[4,3-b]pyridine?
For 1H-Pyrazolo[4,3-b]pyridine, Upstream Products: 1-(1H-Pyrazolo[4,3-b]pyridin-1-yl)ethanone, 3-Fluoro-2-pyridinecarboxaldehyde, 3-Fluoropyridine; Downstream Products: 3-bromo-1H-pyrazolo[4,3-b]pyridine, 3-iodo-1H-pyrazolo[4,3-b]pyridine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1H-Pyrazolo[4,3-b]pyridine (CAS 272-52-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1526163-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.