1H-Pyrazole-1-carboxaldehyde, 4,5-dihydro-5-methyl- is an organic compound with the chemical formula C5H7N2O. It is a derivative of pyrazole, a five-membered heterocyclic ring containing one nitrogen atom and one carbonyl group. The 4,5-dihydro-5-methyl substitution indicates that the molecule has a double bond between the 4th and 5th carbon atoms, and a methyl group attached to the 5th carbon. 1H-Pyrazole-1-carboxaldehyde, 4,5-dihydro-5-methyl- is often used as a building block in the synthesis of various pharmaceuticals, agrochemicals, and other organic compounds due to its unique structure and reactivity. It is typically synthesized through various chemical reactions, such as the condensation of 1,3-dicarbonyl compounds with hydrazine or the reaction of 1,2-dicarbonyl compounds with amidrazones. The compound is a colorless to pale yellow liquid with a pungent odor and is sensitive to light and moisture, requiring storage under inert conditions.
2004-76-4
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Basic information
- Product Name: 1H-Pyrazole-1-carboxaldehyde, 4,5-dihydro-5-methyl-
- Synonyms:
- CAS NO:2004-76-4
- Molecular Formula: C5H8N2O
- Molecular Weight:
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 1H-Pyrazole-1-carboxaldehyde, 4,5-dihydro-5-methyl-(CAS DataBase Reference)
- NIST Chemistry Reference: 1H-Pyrazole-1-carboxaldehyde, 4,5-dihydro-5-methyl-(2004-76-4)
- EPA Substance Registry System: 1H-Pyrazole-1-carboxaldehyde, 4,5-dihydro-5-methyl-(2004-76-4)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 2004-76-4(Hazardous Substances Data)
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2004-76-4 Usage
Chemical structure
Pyrazole ring with a carboxaldehyde group at the 1-position and a 5-methyl group on the 4,5-dihydro-ringDerivative of pyrazole family
Used in the synthesis of pharmaceuticals and agrochemicals
Potential applications in medicinal chemistry and organic synthesis
Diverse reactivity and functional groups
Potential to exhibit biological activity
May be used as a starting material in the development of new drugs and pesticides
Check Digit Verification of cas no
The CAS Registry Mumber 2004-76-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,0 and 4 respectively; the second part has 2 digits, 7 and 6 respectively.Calculate Digit Verification of CAS Registry Number 2004-76:
(6*2)+(5*0)+(4*0)+(3*4)+(2*7)+(1*6)=44
44 % 10 = 4
So 2004-76-4 is a valid CAS Registry Number.
2004-76-4Upstream product
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1H-Pyrazole-1-carboxaldehyde, 4,5-dihydro-5-methyl-
