26033-20-5

26033-20-5 - Names and Identifiers

Name	5-phenyl-1H-pyrazole-4-carbaldehyde
Synonyms	3-Phenylpyrazole-4-carbaldehyde 3-Phenyl-1H-pyrazole-4-carbaldehyde 5-phenyl-1H-pyrazole-4-carbaldehyde 3-phenyl-2H-pyrazole-4-carbaldehyde 3-phenyl-2H-pyrazole-4-carboxaldehyde 1H-Pyrazole-4-carboxaldehyde,3-phenyl- 1H-pyrazole-4-carboxaldehyde, 5-phenyl- 1H-Pyrazole-4-carboxaldehyde, 3-phenyl- 3-Phenyl-1H-pyrazole-4-carboxaldehyde4-Formyl-3-phenylpyrazole
CAS	26033-20-5
InChI	InChI=1/C10H8N2O/c13-7-9-6-11-12-10(9)8-4-2-1-3-5-8/h1-7H,(H,11,12)

26033-20-5 - Physico-chemical Properties

Molecular Formula	C10H8N2O
Molar Mass	172.18
Density	1.1841 (rough estimate)
Melting Point	146-148 °C
Boling Point	302.5°C (rough estimate)
Flash Point	210.3°C
Vapor Presure	2.55E-07mmHg at 25°C
Appearance	Powder
Color	Light yellow
pKa	11.17±0.50(Predicted)
Storage Condition	2-8°C
Refractive Index	1.7040 (estimate)
MDL	MFCD00216971

26033-20-5 - Risk and Safety

Risk Codes	R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed
Safety Description	S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany	3
HS Code	29331990
Hazard Class	IRRITANT

26033-20-5 - Introduction

A, also known as A, is an organic compound. The following is a description of its nature, use, formulation and safety information:

Nature:
-Appearance: It is a yellow crystalline solid.
-Solubility: It has good solubility in common organic solvents, such as ethanol, dimethylformamide, etc.
-Melting point: Its melting point is about 100-102°C.

Use:
-is often used as an intermediate in organic synthesis reactions for the synthesis of other organic compounds.
-It has certain application value in the field of medicine, and can be used as a precursor of anti-tumor drugs and anti-inflammatory drugs.

Method:
It is usually synthesized by the following steps:
1. The phenyl carboxylic acid and isonitrimethamide first react to obtain the phenyl carboxylic acid isonitrio ester.
2. The reaction of isonitridephenyl formate and malonic acid dianhydride to obtain 3-phenyl -1H-pyrazole -4-carboxylic acid dimethyl ester.
3. 3-phenyl-1H-pyrazole-4-carboxylic acid dimethyl demethyl Ester is finally converted to pyridine by reduction and condensation reaction.

Safety Information:
-Appropriate laboratory and personal protective measures, such as protective glasses and gloves, should be taken when using the product.
-may cause irritation to the eyes, skin and respiratory tract, so contact should be avoided. In case of accidental contact, flush with water immediately and seek medical help.
-The toxicity and environmental impact of the cyanide are not fully understood, so the relevant safety regulations and environmental regulations should be observed during handling and disposal.

Last Update：2024-04-09 21:00:56

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