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Model No.: 288-13-1
Brand: JINAN FOREVER
Packaging: 25kgs carton
Productivity: 1,000mt
Transportation: Ocean,Land,Air
Place of Origin: China
Supply Ability: 800mt
Certificate: ISO9001
HS Code: 293319
Port: Qingdao
Payment Type: L/C,T/T,D/P
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
PYRAZOLE can be selectively lithiated on different carbon atoms and then reacted with Electrophile depending on the mode of substitution. The deprotonation and subsequent carboxylation of 1-methyl-5-(trifluoromethyl) pyrazole are carried out mainly or only at the 4-position of the Heterocyclic ring or on methyl groups linked to nitrogen. Similarly, 1-phenyl-5-(trifluoromethyl) pyrazole and 3-methyl-1-phenyl-5-(trifluoromethyl) pyrazole are selectively attacked by Lithium diisopropylamide at the 4 th position of the Heterocyclic ring and by N-butyllithium at the n-butyl group. 4-and ortho-position of benzene ring. In contrast, metallization of 1-methyl-3-(trifluoromethyl) pyrazole occurs only at the 5-position, regardless of the organic metal or metal-amide base.
Indicators | Electronic grade | Pharmaceutical grade | Pesticide Grade |
Appearance | Natural Grain Crystal | Crystallization of natural particles or mechanical granulation | Mechanical Granulation |
Content (%) , chromatographic method ≥ | 99.5 | 99 | 98.5 |
Whiteness(r457) | Natural Crystal: Colorless Transparent Crystal | Mechanical Granulation ≥60 Natural Crystal: Colorless Transparent Crystal | Mechanical Granulation ≥55~<60 |
Moisture content (%) ≤ | 0.5 | 0.8 | 1.0 |
Fe+ (%) ≤ | 0.00005 | -- | -- |
Melting point ℃ | 67.0~70.0 | 67.0~70.0 | 67.0~70.0 |
Packaging, transportation and storage:
Pyrazole is transported in sealed plastic-lined cardboard or iron drums and stored in dry, ventilated, rain-proof and sun-proof places to avoid mixing with hydroxide. Keep away from heat and open flames.
Other related items of our company:
1. Hydrazine Hydrate
2. Azodicarbonamide
3. 2-Aminophenol
4. Ferric Chloride Anhydrous
5. Betaine Hydrochloride
Product Categories : Pyrazole CAS No.288-13-1
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.