Pyrazole (CAS 288-13-1) — formula C3H4N2, molecular weight 68.08; category organic chemicals.
Pyrazole (CAS 288-13-1) is a chemical raw material in the organic chemicals category. Its molecular formula C3H4N2 comprises 3 C, 4 H, 2 N atoms. Its molecular weight is about 68.08. Reported physicochemical data: melting point around 68, boiling point around 187, LogP about 0.26. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 288-13-1 |
|---|---|
| Molecular Formula | C3H4N2 |
| Molecular Weight | 68.08 |
| Melting Point | 68 |
| Boiling Point | 187 |
| LogP | 0.26 |
| Applications | chelating agent and in organic synthesis, Other, Etching agent, U.S. Production: 2023: 75, 000 - <500, 000 lb |
| Category | Organic Chemicals |
Documented applications: chelating agent and in organic synthesis, Other, Etching agent, U.S. Production: 2023: 75, 000 - <500, 000 lb.
Pyrazole is a carbon-based organic compound with CAS registry number 288-13-1 and molecular formula C3H4N2 (molecular weight 68.08), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 288-13-1
Its molecular formula C3H4N2 comprises 3 C, 4 H, 2 N atoms.
Also known as: Pyrazole · 吡唑
Category: organic chemicals
The CAS registry number of Pyrazole is 288-13-1.
Molecular formula C3H4N2, molecular weight 68.08.
It is also registered under: Pyrazole, 吡唑.
Recorded applications: chelating agent and in organic synthesis, Other, Etching agent, U.S. Production: 2023: 75, 000 - <500, 000 lb.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Pyrazole (CAS 288-13-1), compiled from public chemistry databases.
| CAS Registry Number | 288-13-1 |
|---|---|
| PubChem CID | 1048 |
| Molecular formula | C3H4N2 |
| IUPAC name | 1H-pyrazole |
| UNII (FDA) | 3QD5KJZ7ZJ |
| Molecular Weight | 68.08 |
|---|---|
| XLogP3 | 0.3 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 68.037448136 |
| Monoisotopic Mass | 68.037448136 |
| Topological Polar Surface Area | 28.7 |
| Heavy Atom Count | 5 |
| Boiling Point | 187 |
|---|---|
| Melting Point | 68 |
| Solubility | 19400 |
| Vapor Pressure | 1.19 [mmHg] |
| LogP | 0.26 |
| LogP | 0.13 |
| Dissociation Constants | 2.48 (at 25 °C) |
pyrazole; 1H-Pyrazole; 288-13-1; 1,2-diazole; Pyrazol; 1H-pyrazol; 3QD5KJZ7ZJ; DTXSID2059774; NSC45410; NSC-45410; CHEBI:17241; RefChem:6183; DTXCID4037873; CHEBI:14973; 206-017-1; MFCD00005234
| GHS notification summary | 0.4% (1 / 265) |
|---|
| GHS notification summary | 0.4% (1 / 265) |
|---|---|
| Reported hazard statements | H302 (98.9%), H311 (80%), H315 (99.6%), H318 (80%), H319 (19.2%), H335 (19.2%), H372 (80%), H412 (80.4%) |
This chemical does not meet GHS hazard criteria for 0.4% (1 of 265) of reports.
H302 (98.9%): Harmful if swallowed [Warning Acute toxicity, oral]
Pyrazole · CAS 288-13-1 · C3H4N2. UNII 3QD5KJZ7ZJ. Boiling Point: 187; Melting Point: 68; Solubility: 19400.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 吡唑