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5-methyl-1H-pyrazole-3-carbaldehyde

CAS No.
3273-44-7
Chemical Name:
5-methyl-1H-pyrazole-3-carbaldehyde
Synonyms
5-Methyl-3-forMylpyrazole;3-ForMyl-5-Methylpyrazole;5-Methylpyrazole-3-carbaldehyde;5-methyl-1H-pyrazole-3-carbaldehyde;5-Methyl-1H-pyrazole-3-carboxaldehyde;1H-Pyrazole-3-carboxaldehyde, 5-methyl-;5-methyl-1H-pyrazole-3-carbaldehyde(SALTDATA: FREE);3-methyl-1H-pyrazole-5-carbaldehyde(SALTDATA: FREE)
CBNumber:
CB42134059
Molecular Formula:
C5H6N2O
Molecular Weight:
110.11
MDL Number:
MFCD09055186
MOL File:
3273-44-7.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:44
Product description Number Pack Size Price
5-Methyl-1H-pyrazole-3-carbaldehyde M336415 500mg $240
5-Methyl-1H-pyrazole-3-carbaldehyde 95% OR925890 1g $355
3-Methyl-1H-pyrazole-5-carbaldehyde 016461 2.500g $573
3-Methyl-1H-pyrazole-5-carbaldehyde 016461 500mg $144
5-methyl-1H-pyrazole-3-carbaldehyde 95+% CM112608 10g $739
More product size

5-methyl-1H-pyrazole-3-carbaldehyde Properties

Melting point 190 °C
Boiling point 294.2±20.0 °C(Predicted)
Density 1.238±0.06 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
pka 11.76±0.10(Predicted)
Appearance Off-white to yellow Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313
RIDADR  UN2811
HazardClass  IRRITANT
HS Code  2933199090

5-methyl-1H-pyrazole-3-carbaldehyde price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC M336415 5-Methyl-1H-pyrazole-3-carbaldehyde 3273-44-7 500mg $240 2021-12-16 Buy
Apolloscientific OR925890 5-Methyl-1H-pyrazole-3-carbaldehyde 95% 3273-44-7 1g $355 2021-12-16 Buy
Matrix Scientific 016461 3-Methyl-1H-pyrazole-5-carbaldehyde 3273-44-7 2.500g $573 2021-12-16 Buy
Matrix Scientific 016461 3-Methyl-1H-pyrazole-5-carbaldehyde 3273-44-7 500mg $144 2021-12-16 Buy
Chemenu CM112608 5-methyl-1H-pyrazole-3-carbaldehyde 95+% 3273-44-7 10g $739 2021-12-16 Buy
Product number Packaging Price Buy
M336415 500mg $240 Buy
OR925890 1g $355 Buy
016461 2.500g $573 Buy
016461 500mg $144 Buy
CM112608 10g $739 Buy

5-methyl-1H-pyrazole-3-carbaldehyde Chemical Properties,Uses,Production

Synthesis

Ethyl 3-methyl-1H-pyrazole-5-carboxylate

4027-57-0

5-methyl-1H-pyrazole-3-carbaldehyde

3273-44-7

General procedure for the synthesis of 5-methyl-1H-pyrazole-3-carbaldehyde from ethyl 3-methylpyrazole-5-carboxylate: 3-ethoxycarbonyl-5-methylpyrazole (1.0 g, 4.34 mmol) was dissolved in 15 ml of purified toluene under the protection of nitrogen, diisobutylaluminum hydride (DIBAL, 8.68 ml, 8.62 mmol) was added slowly and the reaction was carried out at -78 C. The reaction was stirred. The progress of the reaction was monitored by thin layer chromatography (TLC, unfolding agent ratio hexane: ethyl acetate = 6:1). Upon completion of the reaction, the reaction was quenched by slow addition of methanol and water and the resulting mixture was filtered through a bed of diatomaceous earth and the aqueous layer was extracted with ethyl acetate (EtOAc). The organic layers were combined, dried with anhydrous magnesium sulfate (MgSO4), filtered and concentrated under reduced pressure. The concentrate was purified by column chromatography (eluent ratio of hexane: ethyl acetate: dichloromethane = 3:1:1) to afford the target product 5-methyl-1H-pyrazole-3-carbaldehyde in 82.4% yield. The structure of the product was confirmed by 1H NMR (300 MHz, CDCl3): δ 9.92 (s, 1H), 6.68 (s, 1H), 2.82 (s, 3H).

References

[1] Patent: EP1757590, 2007, A1. Location in patent: Page/Page column 5
[2] Patent: US2007/49604, 2007, A1. Location in patent: Page/Page column 3

5-methyl-1H-pyrazole-3-carbaldehyde Preparation Products And Raw materials

Global( 70)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi Dideu Medichem Co. Ltd
+86-029-81138252 +86-173 9270 1263 1057@dideu.com China 3999 58
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
+86-13017695106 +86-13676922317 jiuyitime@fdachem.com China 16513 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718; +8613336195806 sales@capot.com China 29735 60
Shenzhen Nexconn Pharmatechs Ltd
+86-755-89396905 +86-15013857715 admin@nexconn.com China 10405 58
Career Henan Chemica Co
+86-0371-86658258 +8613203830695 laboratory@coreychem.com China 30229 58
Coresyn Pharmatech Co., Ltd.
+86-571-86626709 +86-18157142896 cbc@coresyn.com China 9984 58
Golden Pharma Co., Limited
+undefined18958062155 sales@zjgoldpharm.com China 5899 58
SUZHOU SENFEIDA CHEMICAL CO.,LTD
+86-0512-83500002 +8618662433356 3899766280@qq.com China 26362 58
HANGZHOU LEAP CHEM CO., LTD.
+86-571-87711850 market18@leapchem.com China 43339 58
Aladdin Scientific
tp@aladdinsci.com United States 52923 58

View Lastest Price from 5-methyl-1H-pyrazole-3-carbaldehyde manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5-methyl-1H-pyrazole-3-carbaldehyde pictures 2025-10-13 5-methyl-1H-pyrazole-3-carbaldehyde
3273-44-7
US $1.60-6.60 / kg 1kg 99% 100kg ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
5-Methyl-1H-pyrazole-3-carbaldehyde pictures 2024-07-11 5-Methyl-1H-pyrazole-3-carbaldehyde
3273-44-7
US $1.00 / KG 1KG 99% 20T Shaanxi Dideu Medichem Co. Ltd

5-methyl-1H-pyrazole-3-carbaldehyde Spectrum

5-methyl-1H-pyrazole-3-carbaldehyde 3-methyl-1H-pyrazole-5-carbaldehyde(SALTDATA: FREE) 5-methyl-1H-pyrazole-3-carbaldehyde(SALTDATA: FREE) 5-Methyl-1H-pyrazole-3-carboxaldehyde 3-ForMyl-5-Methylpyrazole 5-Methyl-3-forMylpyrazole 5-Methylpyrazole-3-carbaldehyde 1H-Pyrazole-3-carboxaldehyde, 5-methyl- 3273-44-7