CAS Number3920-50-1
Synonyms3-Formylpyrazole; 1H-Pyrazole-5-carbaldehyde; 3-Pyrazolecarboxaldehyde; MFCD06657574; 1H-Pyrazole-3(5)-carboxaldehyde; 1H-Pyrazole-5-carboxaldehyde; 1H-Pyrazole-3-carbaldehyde
Molecular FormulaC4H4N2O
Molecular Weight96.087
Purity98.00%
Density1.323
Boiling Point300.0±13.0 °C at 760 mmHg
Melting Point149.0 to 153.0 °C
AppearanceSolid;White to Orange to Green powder to crystal
| Chemical & Physical Properties | |
|---|---|
| CAS Number | 3920-50-1 |
| Catalog No. | 2A-9030297 |
| Chinese Name | 1H-吡唑-3-甲醛 |
| Synonyms | 3-Formylpyrazole; 1H-Pyrazole-5-carbaldehyde; 3-Pyrazolecarboxaldehyde; MFCD06657574; 1H-Pyrazole-3(5)-carboxaldehyde; 1H-Pyrazole-5-carboxaldehyde; 1H-Pyrazole-3-carbaldehyde |
| Molecular Formula | C4H4N2O |
| Molecular Weight | 96.087 |
| Purity | 98.00 |
| Density | 1.323 |
| Boiling Point | 300.0±13.0 °C at 760 mmHg |
| Melting Point | 149.0 to 153.0 °C |
| Appearance | Solid;White to Orange to Green powder to crystal |
| Storage Condition | Store under inert gas; avoid air |
| HTC | 2933199090 |
| SMILES | O=Cc1ccn[nH]1 |
| InChI Key | ICFGFAUMBISMLR-UHFFFAOYSA-N |
| MSDS | msds/30297_1_3920_50_1.pdf |
| Use of | health and chemical hazard data given on this sheet. Store in closed vessels, refrigerated. Section8. Exposure Controls / Personal protection Engineering Controls: Use only in a chemical fume hood. Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles. General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse. Section9. Physical and chemical properties Appearance:Not specified Boiling point:No data Melting point: Flash point:No data Molecular formula:C4H4N2O Molecular weight:96.1 Section10. Stability and reactivity Conditions to avoid: Heat, flames and sparks. Materials to avoid: Oxidizing agents. Possible hazardous combustion products: Carbon monoxide, nitrogen oxides. Section11. Toxicological information Section12. Ecological information Section13. Disposal consideration Arrange disposal as special waste, by licensed disposal company, in consultation with local waste disposal authority, in accordance with national and regional regulations. Section14. Transportation information Non-harzardous for air and ground transportation. Section15. Regulatory information No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302, or have known CAS numbers that exceed the threshold reporting levels established by SARA Title III, Section 313. SECTION 16 - ADDITIONAL INFORMATION Safety Information Hazard Codes Xi,Xn WGK Germany 3.0 HS Code 2933199090 Synthetic Route Total: 1 Page 3-(Dimethoxymet... CAS#:111573-59-2 1H-Pyrazole-3-c... CAS#:3920-50-1 Literature: Gregg, Brian T.; Golden, Kathryn C.; Quinn, John F. Journal of Organic Chemistry, 2007 , vol. 72, # 15 p. 5890 - 5893 diazomethane CAS#:186581-53-3 CAS#:624-67-9 1H-Pyrazole-3-c... CAS#:3920-50-1 Literature: Huettel Chemische Berichte, 1941 , vol. 74, p. 1680,1685 Full Text Show Details Huettel et al. Justus Liebigs Annalen der Chemie, 1954 , vol. 585, p. 115,120 Precursor & DownStream Precursor 3 CAS#:111573-59-2 3-(Dimethoxymet... CAS#:186581-53-3 diazomethane CAS#:624-67-9 DownStream 2 CAS#:111573-59-2 3-(Dimethoxymet... CAS#:397329-07-6 1-Allyl-1H-pyra... |
| Tax Rebate | 13.0% |
| Supervision | None. MFN tariff: 6.5%. Ordinary tariff: 20.0% |
| Transport Info | Product name: Summary 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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