3-Amino-5-methylpyrazole Chemical Properties

Melting point:

45-47 °C (lit.)

Boiling point:

213 °C/14 mmHg (lit.)

Density 

1.0548 (rough estimate)

refractive index 

1.5200 (estimate)

Flash point:

>230 °F

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

solubility 

Soluble in Dichloromethane and Methanol.

pka

15.84±0.10(Predicted)

form 

Solid

color 

Light yellow to orange

Sensitive 

Air Sensitive

BRN 

1904

Stability:

Light Sensitive

InChIKey

FYTLHYRDGXRYEY-UHFFFAOYSA-N

CAS DataBase Reference

31230-17-8(CAS DataBase Reference)

EPA Substance Registry System

1H-Pyrazol-3-amine, 5-methyl- (31230-17-8)

Safety Information

Hazard Codes 

Xi,Xn

Risk Statements 

36/37/38-22

Safety Statements 

26-36-37/39

WGK Germany 

3

HazardClass 

IRRITANT

HS Code 

29331990

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

3-Amino-5-methylpyrazole Usage And Synthesis

Chemical Properties

white to light yellow crystal powde

Uses

3-Amino-5-methyl-1H-pyrazole was employed as beta-sheet template to investigate its interaction with ferrocenoyl-dipeptides. It is also used in the synthesis of 4-aryl-3,7,7-trimethyl-2,4,6,7,8,9-hexahydropyrazolo[3,4-b]quinolin-5-ones. It can react with 4-Ethoxymethylene-2-phenyl-4H-oxazol-5-one to get N-(2-Methyl-7-oxo-4,7-dihydro-pyrazolo[1,5-a]pyrimidin-6-yl)-benzamide.

Uses

3-Amino-5-methylpyrazole was employed as beta-sheet template to investigate its interaction with ferrocenoyl-dipeptides. It was also used in the synthesis of 4-aryl-3,7,7-trimethyl-2,4,6,7,8,9-hexahydropyrazolo[3,4-b]quinolin-5-ones.

Definition

ChEBI: 5-Methyl-3-pyrazolamine is a heterocyclic compound and a dicarboximide.

General Description

Complexation of the amino- and carboxyl-protected tripeptide with 3-amino-5-methylpyrazole was studied by low-temperature NMR experiments in a freonic solvent.

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