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sehlahisoa

1H-Pyrazole-3-carboxylicacid 5-methyl-(CAS# 696-22-0)

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C5H6N2O2
'Misa oa Molar 126.11
Botenya 1.404 g/cm3
Melting Point 236-240 ℃
Boling Point 388.8 °C ho 760 mmHg
Flash point 188.9 °C
Khatello ea Mouoane 9.69E-07mmHg ho 25°C
Boemo ba polokelo 2-8°C
Refractive Index 1.595

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Matšoao a Kotsi Xi - Ea halefisang
Likhoutu tsa Kotsi R36/37/38 – Ho tena mahlo, tsamaiso ya ho hema le letlalo.
Tlhaloso ea Tšireletseho S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka.
S37/39 - Apara liatlana tse loketseng le tšireletso ea mahlo / sefahleho

 

Selelekela

Ke motsoako oa manyolo o nang le foromo ea lik'hemik'hale C5H5N2O2. Ha e le hantle, ha e na 'mala ho isa ho 'mala o mosehla o tiileng oa kristale.

 

Motsoako o na le lihlopha tse peli tse sebetsang, e 'ngoe ke selikalikoe sa pyrazole' me e 'ngoe ke sehlopha se sebetsang sa carboxylic acid. E na le ho qhibiliha ho itekanetseng 'me e qhibiliha ka metsing le ka har'a metsoako e tloaelehileng ea tlhaho. Sehlopha sa methyl sebopeho sa eona se etsa hore e be hydrophobic.

 

Joaloka motsoako oa heterocyclic, 5-methyl-e na le mefuta e sa tšoaneng ea mesebetsi ea likokoana-hloko. E sebelisoa haholo lipatlisisong tsa meriana le motsoako oa lithethefatsi, hangata e le thepa e tala kapa e bohareng. Lisebelisoa tse khethehileng li kenyelletsa motsoako oa li-analogue tsa vithamine B1, likokoanyana tse bolaeang likokoanyana, li-plavix inhibitors (motsoako o sebelisetsoang ho thibela kholo ea limela), joalo-joalo.

 

Tokisetso, 5-methyl-e ka fumanoa ka ho arabela athomo ea nitrogen ea reng ea pyrazole ka methylating agent (mohlala, methyl iodide). Mokhoa ona o etsoa ke karabelo ea N-methylation, mokhoa o tloaelehileng ke karabelo ea nucleophile e tsamaisanang le N-methyl reagent.

 


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