3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE
- Product Name
- 3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE
- CAS No.
- 14704-41-7
- Chemical Name
- 3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE
- Synonyms
- TIMTEC-BB SBB006683;3,5-DI(TRIFLUOROMETHYL)PYRAZOLE;3,3-Bis(trifluoromethyl)pyrazol;3,5-Bis(trfluoromethyl)pyrazole;3,5-Bis(trifluormethyl)pyrazole;3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE;3,5-Di(trifluoromethyl)-1H-pyrazole;3,5-Bis(trifluoromethyl)pyrazole97%;3,5-Bis(trifluoromethyl)pyrazole 97%;3,5-BIS(TRIFLUOROMETHYL)-1H-PYRAZOLE
- CBNumber
- CB2330080
- Molecular Formula
- C5H2F6N2
- Formula Weight
- 204.07
- MOL File
- 14704-41-7.mol
3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE Property
- Melting point:
- 83-85 °C(lit.)
- Boiling point:
- 147°C(lit.)
- Density
- 1.5672 (estimate)
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- solubility
- soluble in Methanol
- form
- powder to crystal
- pka
- 7.12±0.10(Predicted)
- color
- White to Almost white
- CAS DataBase Reference
- 14704-41-7(CAS DataBase Reference)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 390399
- Product name
- 3,5-Bis(trifluoromethyl)pyrazole
- Purity
- 99%
- Packaging
- 1g
- Price
- $56.5
- Updated
- 2022/05/15
- Product number
- B4762
- Product name
- 3,5-Bis(trifluoromethyl)pyrazole
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $47
- Updated
- 2025/07/31
- Product number
- B4762
- Product name
- 3,5-Bis(trifluoromethyl)pyrazole
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $195
- Updated
- 2025/07/31
- Product number
- T790763
- Product name
- 3,5-Bis(Trifluoromethyl)-1H-pyrazole
- Packaging
- 500mg
- Price
- $75
- Updated
- 2021/12/16
- Product number
- 3H31-3-35
- Product name
- 3,5-Bis(trifluoromethyl)pyrazole
- Purity
- 97%
- Packaging
- 5G
- Price
- $77
- Updated
- 2021/12/16
3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE Chemical Properties,Usage,Production
Chemical Properties
colorless to light yellow crystalline powder
Synthesis
1522-22-1
14704-41-7
Hexafluoroacetylacetone 1a (29.4 g, 20 mL, 141 mmol) and anhydrous ethanol (100 mL) were added to a 250 mL three-necked, round-bottomed flask fitted with a magnetic stirrer, a thermometer, an aqueous condenser tube and a constant-pressure dropping funnel. The reaction system was cooled to 5 °C in an ice-water bath. Hydrazine monohydrate (7.0 g, 6.8 mL, 140 mmol) was slowly added dropwise over a period of 20 min, controlling the reaction temperature to not exceed 8 °C. After the dropwise addition, the reaction mixture was heated to reflux for 8 hours. After completion of the reaction, it was cooled to room temperature and subsequently concentrated under reduced pressure on a rotary evaporator, controlling the temperature of the water bath not to exceed 40 °C, to give a yellow syrupy product. The product was dissolved in 98% concentrated sulfuric acid (10 mL) under cooling in an ice bath and vigorous stirring.After 15 min, the reaction mixture was carefully decanted into ice (300 g) to precipitate a light yellow solid, which was washed with ice water (50 mL) to afford 3,5-bis(trifluoromethyl)-1H-pyrazole 2 (25.13 g, 88% yield) as a colorless solid with a characteristic odor. The product characterization data were as follows: 1H NMR (DMSO-d6/CDCl3, 2:1): δ= 5.70 (brs, 1H, NH), 7.40 (s, 1H, H-4). 13C NMR: δ= 138.1 (q, 2JC-F = 39 Hz, C-3/C-5), 120.5 (q, 1JC-F = 267 Hz, CF3). 105.2 (s, C-4).19F NMR (DMSO-d6/CDCl3, 2:1): δ= -62.5 (s).IR (cm-1): 3160 (s), 1510, 1595 (s), 1150 (s).GC-MS (tR 6.78 min). Elemental Analysis (C5H2F6N2) Calculated: C, 29.43; N, 13.73. Measured: C, 29.44; N, 13.76. pKa 7.10 [Literature Value 25: 7.5]. Melting point 81°C [Literature Value 25: 83-84°C]. The purity of the sample was determined to be >98% by differential scanning calorimetry (DSC) (scan rate 2.58°C/min; melting point 85.2°C).
References
[1] Journal of Fluorine Chemistry, 2012, vol. 139, p. 53 - 57
[2] Journal of Fluorine Chemistry, 1991, vol. 51, # 2, p. 283 - 289
[3] Journal of Organic Chemistry, 2012, vol. 77, # 1, p. 47 - 56
[4] Helvetica Chimica Acta, 1995, vol. 78, # 4, p. 993 - 1000
[5] Journal of Fluorine Chemistry, 1993, vol. 65, # 1-2, p. 21 - 24
3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE manufacturers
- Product
- 3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE 14704-41-7
- Price
- US $0.00-0.00/G
- Min. Order
- 1G
- Purity
- 98%
- Supply Ability
- 20TONS
- Release date
- 2025-11-04
- Product
- 3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE 14704-41-7
- Price
- US $1.50/g
- Min. Order
- 1g
- Purity
- 99.0% Min
- Supply Ability
- 100 Tons
- Release date
- 2025-09-25
- Product
- 3,5-BIS(TRIFLUOROMETHYL)PYRAZOLE 14704-41-7
- Price
- US $1.60-6.60/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 100kg
- Release date
- 2025-06-19