5-Amino-1H-Pyrazol-3(2H)-One(CAS 28491-52-3)
| Purity | Grade | Package | Stock | Price | Quantity |
| 98% | RG | 5G | In Stock | 7 USD
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| 98% | RG | 25G | In Stock | 28 USD
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| 98% | RG | 100G | In Stock | 99 USD
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| 98% | RG | 500G | In Stock | 444 USD
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| Bulk Packaging | 25KG | substantially lower unit cost than small-pack SKUs. Contact us for a fast quotation. | |||
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Your region is eligible for ordering. Available NMR Spectrum
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Applications of 28491-52-3
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a pharmaceutical intermediate in the synthesis of anti-inflammatory and antitumor agents | Applied in multi-step organic synthesis reactions—including coupling and cyclization—to construct target molecular structures |
| Pesticides | Used to synthesize novel pesticide active ingredients with fungicidal or insecticidal activity | Applied in amidation and substitution reactions to introduce biologically active functional groups |
| Polymers & Advanced Materials | Used as a functional monomer or crosslinker to enhance polymer performance | Participates in free-radical polymerization or condensation polymerization to improve thermal stability and mechanical strength |
| Dyes & Pigments | Used to synthesize specialty dye intermediates, enhancing color strength and stability | Applied in diazotization and coupling processes to prepare azo dyes or heterocyclic dyes |
| Electronic Chemicals | Used as a precursor for semiconductor or photoresist materials | Applied in thin-film deposition via chemical vapor deposition (CVD) or solution-based methods |
Physical and chemical properties of 28491-52-3
Acidity coefficient |
8.31±0.70(Predicted) |
|---|---|
Boiling Point |
479.5±25.0 °C at 760 mmHg |
Density |
1.6±0.1 g/cm3 |
Exact Mass |
99.043259 |
Flash Point |
243.8±23.2 °C |
Index of Refraction |
1.741 |
LogP |
-0.22 |
Melting Point |
204°C |
Molecular Formula |
C3H5N3O |
Molecular Weight |
99.091 |
PSA |
74.67000 |
Storage condition |
2-8°C |
Vapour Pressure |
0.0±1.2 mmHg at 25°C |
Spectrums of 28491-52-3
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Retrosynthesis analysis of 28491-52-3
Cas:140-87-4
Cas:124-41-4
Cas:141-52-6
Q&A for CAS 28491-52-3
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
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If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
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Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
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Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
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Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
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Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
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Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
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Download SDS of 28491-52-3
Pictograms |
 |
|---|---|
Signal Word |
Warning |
Hazard Statements |
H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation |
Safety Data Sheet |
Download COA of 28491-52-3
Operate under the ISO 9001 system
