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Catalog No.: STP4753

Product Name:



2-methyl-3-pyrazolecarboxaldehyde; 2-methylpyrazole-3-carbaldehyde

CAS: 27258-33-9 Molecular Formula: C5H6N2O Molecular Weight: 110.116

SMILES: Cn1nccc1C=O


MDL No.: MFCD03419801

Packages & Prices

Package Price(FOB China, Excl.VAT) Stock Quantity
0.5g;1g;5g;bulk 0.5g:$160;1g:$200;5g:$600 Yes - + Add To Cart

Product Property

Appearance N/A Assay 95%
Melting PointN/A Boiling Point50-53°c / 4 mmhg
Flash Point66 °C Density1.118 g/ml 
Rotation ValueN/A Refractive Index n20/D1.521
Solubility N/A NMR In Text 1H NMR (CDCl3): δ (ppm) = 4.18 (s, 3h, nch3), 6.89 (d, j = 5.0 hz, 1H, pyrazole-4-ch), 7.52 (d, j = 5.0 hz, 1H, pyrazole-3-ch), 9.83 (s, 1H, archo).
NMR ref.literature Laboratorios Del Dr. Esteve S.A. Patent: Ep1982987 A1, 2008 ; Stability Stable under normal conditions.
Storage Conditions Choose appropriate inner packing material,store at a cool and dry place,with container tightly sealed.If to be stored for a long time ,protection udner nitrogen and lower temperature is recommended(below 4 deg C). Preferred inner packing material: glass,ETFE,FEP,TFE,PFA,FLPE,TPE. Acceptable:FLPP,HDPE,PC,PETG,PP,PVC. Not recommended: LDPE UNN/A
Hazard ClassN/A Packing GroupN/A
UN Limited Qty. Per Inner Package N/A China Transport Certification N/A
Risk Statements H302 : Harmful if swallowed. -H315: Causes skin irritation. -H317 : May cause an allergic skin reaction. -H319: Causes serious eye irritation. -H335: May cause respiratory irritation Safety Statements P261: Avoid breathing dust/fume/gas/mist/vapours/spray.-P280: Wear protective gloves/protective clothing/eye protection/face protection.-P305: IF IN EYES:+P351: Rinse cautiously with water for several minutes.+P338: Remove contact lenses, if present and easy to do.Continue rinsing.
Directory Of Existing Chemical Substance Of China N/A TSCAN/A
EINECSN/A Hazard Code XN: Harmful
RTECSN/A HS Code contact us to get correct HS code